diff --git a/.editorconfig b/.editorconfig
index 5d12634..e9a9bff 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -3,7 +3,7 @@ root = true
 
 [*]
 indent_style = space
-indent_size = 2
+indent_size = 4
 end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true
diff --git a/.eslintrc b/.eslintrc
index 7456042..1c94ea4 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -1,125 +1,29 @@
 {
-  "rules": {
-    "no-shadow-restricted-names":  [2],
-    "computed-property-spacing":   [2],
-    "no-empty-character-class":    [2],
-    "no-irregular-whitespace":     [2],
-    "no-unexpected-multiline":     [2],
-    "no-multiple-empty-lines":     [2],
-    "keyword-spacing":             [2],
-    "no-constant-condition":       [2],
-    "no-extra-boolean-cast":       [2],
-    "no-inner-declarations":       [2],
-    "no-this-before-super":        [2],
-    "no-array-constructor":        [2],
-    "object-curly-spacing":        [2, "always"],
-    "no-floating-decimal":         [2],
-    "no-warning-comments":         [2],
-    "handle-callback-err":         [2],
-    "no-unneeded-ternary":         [2],
-    "operator-assignment":         [2],
-    "space-before-blocks":         [2],
-    "no-native-reassign":          [2],
-    "no-trailing-spaces":          [2],
-    "operator-linebreak":          ["error", "after", { "overrides": { "?": "ignore", ":": "ignore" } }],
-    // "consistent-return":           [2],
-    "no-duplicate-case":           [2],
-    "no-invalid-regexp":           [2],
-    "no-negated-in-lhs":           [2],
-    "constructor-super":           [2],
-    "no-nested-ternary":           [0],
-    "no-extend-native":            [2],
-    "block-scoped-var":            [2],
-    "no-control-regex":            [2],
-    "no-sparse-arrays":            [2],
-    "no-throw-literal":            [2],
-    "no-return-assign":            [2],
-    "no-const-assign":             [2],
-    "no-class-assign":             [2],
-    "no-extra-parens":             [2],
-    "no-regex-spaces":             [2],
-    "no-implied-eval":             [2],
-    "no-useless-call":             [2],
-    "no-self-compare":             [2],
-    "no-octal-escape":             [2],
-    "no-new-wrappers":             [2],
-    "no-process-exit":             [2],
-    "no-catch-shadow":             [2],
-    "linebreak-style":             [2],
-    "space-infix-ops":             [2],
-    "space-unary-ops":             [2],
-    "no-func-assign":              [2],
-    "no-unreachable":              [2],
-    "accessor-pairs":              [2],
-    "no-labels":                   [2],
-    "no-fallthrough":              [2],
-    "no-path-concat":              [2],
-    "no-new-require":              [2],
-    "no-spaced-func":              [2],
-    "no-unused-vars":              [2],
-    "spaced-comment":              [2],
-    "no-delete-var":               [2],
-    "comma-spacing":               [2],
-    "no-extra-semi":               [2],
-    "no-extra-bind":               [2],
-    "arrow-spacing":               [2],
-    "prefer-spread":               [2],
-    "no-new-object":               [2],
-    "no-multi-str":                [2],
-    "semi-spacing":                [2],
-    "no-lonely-if":                [2],
-    "dot-notation":                [2],
-    "dot-location":                [2, "property"],
-    "comma-dangle":                [2, "never"],
-    "no-dupe-args":                [2],
-    "no-dupe-keys":                [2],
-    "no-ex-assign":                [2],
-    "no-obj-calls":                [2],
-    "valid-typeof":                [2],
-    "default-case":                [2],
-    "no-redeclare":                [2],
-    "no-div-regex":                [2],
-    "no-sequences":                [2],
-    "no-label-var":                [2],
-    "comma-style":                 [2],
-    "brace-style":                 [2],
-    "no-debugger":                 [2],
-    "quote-props":                 [0],
-    "no-iterator":                 [2],
-    "no-new-func":                 [2],
-    // "key-spacing":                 [2, { "align": "value" }],
-    "complexity":                  [2],
-    "new-parens":                  [2],
-    "no-eq-null":                  [2],
-    "no-bitwise":                  [0],
-    "wrap-iife":                   [2],
-    "no-caller":                   [2],
-    "use-isnan":                   [2],
-    // "no-shadow":                   [2],
-    "camelcase":                   [2],
-    "eol-last":                    [2],
-    "no-octal":                    [2],
-    "no-empty":                    [2],
-    "no-alert":                    [2],
-    "no-proto":                    [2],
-    "no-undef":                    [2],
-    "no-eval":                     [2],
-    "no-with":                     [2],
-    "no-void":                     [2],
-    "new-cap":                     [2],
-    "eqeqeq":                      [2],
-    "no-new":                      [2],
-    "quotes":                      [2, "single"],
-    "indent":                      ["error", 2],
-    "semi":                        [2, "always"],
-    "yoda":                        [2, "never"]
-  },
-  "env": {
-    "mocha": true,
-    "node":  true
-  },
-  "globals": {
-    "document": true,
-    "window": true
-  }
+    "env": {
+        "es6": true,
+        "node": true
+    },
+    "extends": "eslint:recommended",
+    "plugins": [
+      "prettier"
+    ],
+    "rules": {
+        "prettier/prettier": "error",
+        "indent": [
+            "error",
+            4
+        ],
+        "linebreak-style": [
+            "error",
+            "unix"
+        ],
+        "quotes": [
+            "error",
+            "single"
+        ],
+        "semi": [
+            "error",
+            "always"
+        ]
+    }
 }
diff --git a/.prettierrc b/.prettierrc
new file mode 100644
index 0000000..8f8ca3a
--- /dev/null
+++ b/.prettierrc
@@ -0,0 +1,6 @@
+{
+  "tabWidth": 4,
+  "singleQuote": true,
+  "eslintIntegration": true,
+  "printWidth": 100
+}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 67c90e1..fb919d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 2.2.0 (2018-06-05)
+
+Fixed: issue with array options
+Updated: package.json
+Updated: eslint rules
+
 ## 2.1.2 (2018-03-31)
 
 Dropped support of Node 4.x
diff --git a/index.js b/index.js
index 2b183d0..10cb349 100644
--- a/index.js
+++ b/index.js
@@ -1,423 +1,437 @@
 /* Required
    ========================================================================== */
 
-var fs = require('fs');
-var path = require('path');
-var postcss = require('postcss');
-var getDirectoryFonts = require('directory-fonts-complete');
+const fs = require('fs');
+const path = require('path');
+const postcss = require('postcss');
+const getDirectoryFonts = require('directory-fonts-complete');
 
 /* Options
    ========================================================================== */
 
-var arrayOptions = ['foundries', 'foundriesOrder', 'formats'],
-  defaultOptions = {
+const arrayOptions = ['foundries', 'foundriesOrder', 'formats', 'hosted'];
+const defaultOptions = {
     async: false,
     aliases: {},
     variants: {},
     custom: {},
     foundries: ['custom', 'hosted', 'bootstrap', 'google'],
     formatHints: {
-      otf: 'opentype',
-      ttf: 'truetype'
+        otf: 'opentype',
+        ttf: 'truetype'
     },
     formats: ['local', 'eot', 'woff2', 'woff'],
     hosted: [],
     display: '',
     protocol: ''
-  },
-  foundries = {
+};
+const foundries = {
     custom: {},
     hosted: {},
     bootstrap: require('bootstrap-fonts-complete'),
     google: require('google-fonts-complete')
-  };
+};
 
 /* Helper Methods
    ========================================================================== */
 
 function getConfiguredOptions(options) {
-  for (var key in defaultOptions) {
-    if (key in options) {
-      if (arrayOptions.indexOf(key) !== -1 && typeof options[key] === 'string') {
-        options[key] = options[key].replace(',', ' ').split(/\s+/);
-      }
-    } else {
-      options[key] = defaultOptions[key];
+    for (var key in defaultOptions) {
+        if (key in options) {
+            if (arrayOptions.includes(key) && typeof options[key] === 'string') {
+                options[key] = options[key].replace(',', ' ').split(/\s+/);
+            }
+        } else {
+            options[key] = defaultOptions[key];
+        }
     }
-  }
 
-  return options;
+    return options;
 }
 
 function getFont(family, options) {
-  var index = -1,
-    foundryName,
-    foundry;
+    var index = -1,
+        foundryName,
+        foundry;
 
-  family = options.aliases[family] || family;
+    family = options.aliases[family] || family;
 
-  while (foundryName = options.foundries[++index]) {
-    foundry = foundries[foundryName];
+    while ((foundryName = options.foundries[++index])) {
+        foundry = foundries[foundryName];
 
-    if (foundry && family in foundry) {
-      return foundry[family];
+        if (foundry && family in foundry) {
+            return foundry[family];
+        }
     }
-  }
 }
 
 function getFormatHint(formatHints, extension) {
-  return '"' + (formatHints[extension] || extension) + '"';
+    return '"' + (formatHints[extension] || extension) + '"';
 }
 
 function getMethod(name, params) {
-  return name + '(' + params + ')';
+    return name + '(' + params + ')';
 }
 
 function getQuoteless(string) {
-  return string.replace(/^(['"])(.+)\1$/g, '$2');
+    return string.replace(/^(['"])(.+)\1$/g, '$2');
 }
 
 function getRelativePath(cssPath, relativePath) {
-  relativePath = relativePath.toString();
-  cssPath = cssPath ? path.dirname(cssPath.toString()) : '';
-  relativePath = path.resolve(process.cwd(), relativePath);
-  return path.relative(cssPath, relativePath);
+    cssPath = cssPath ? path.dirname(cssPath.toString()) : '';
+    relativePath = path.resolve(process.cwd(), relativePath.toString());
+    return path.relative(cssPath, relativePath);
 }
 
 function getSafelyQuoted(string) {
-  string = getQuoteless(string);
-  return string.match(/\s/) ? '"' + string + '"' : string;
+    string = getQuoteless(string);
+    return string.match(/\s/) ? '"' + string + '"' : string;
 }
 
 function splitValue(value) {
-  var splittedValue = value.split(' ');
+    var splittedValue = value.split(' ');
 
-  if (splittedValue.length) {
-    if (
-      !splittedValue[1] ||
-      splittedValue[1] !== 'normal' && splittedValue[1] !== 'italic') {
-      splittedValue.splice(1, 0, 'normal');
-    }
+    if (splittedValue.length) {
+        if (!splittedValue[1] || (splittedValue[1] !== 'normal' && splittedValue[1] !== 'italic')) {
+            splittedValue.splice(1, 0, 'normal');
+        }
 
-    return {
-      weight: splittedValue[0],
-      style: splittedValue[1],
-      stretch: splittedValue[2] || ''
-    };
-  }
+        return {
+            weight: splittedValue[0],
+            style: splittedValue[1],
+            stretch: splittedValue[2] || ''
+        };
+    }
 }
 
 function removeTrailingSlash(url) {
-  return url.replace(/\/$/, '');
+    return url.replace(/\/$/, '');
 }
 
 function generateFont(family, fontFaceRules, options, defaultOptions) {
-  // set the sources array
-  var sources = [],
-    formats = options.formats || defaultOptions.formats;
-
-  // for each format
-  formats.forEach(function (format) {
-    var url, formatHint, source;
-
-    // if the format is local
-    if (format === 'local' && options.urls.local) {
-      // for each local font
-      options.urls.local.forEach(function (local) {
-        // set the source as the local font
-        var localSource = getMethod('local', getSafelyQuoted(local));
-        // add the source to the sources array
-        sources.push(localSource);
-      });
-    } else if (options.urls.url) {
-      url = options.urls.url[format];
-      // conditionally return early if no url is available
-      if (!url) return;
-
-      // change the font url protocol
-      url = url.replace(/^https?:/, defaultOptions.protocol);
-
-      // add the IE hack
-      if (format === 'eot') {
-        url += '?#';
-      }
-
-      // set the format hint and set the source as the url and format hint
-      formatHint = getFormatHint(defaultOptions.formatHints, format);
-      source = getMethod('url', url) + ' ' + getMethod('format', formatHint);
-      sources.push(source);
-    }
-  });
+    // set the sources array
+    var sources = [],
+        formats = options.formats || defaultOptions.formats;
+
+    // for each format
+    formats.forEach(function(format) {
+        var url, formatHint, source;
+
+        // if the format is local
+        if (format === 'local' && options.urls.local) {
+            // for each local font
+            options.urls.local.forEach(function(local) {
+                // set the source as the local font
+                var localSource = getMethod('local', getSafelyQuoted(local));
+                // add the source to the sources array
+                sources.push(localSource);
+            });
+        } else if (options.urls.url) {
+            url = options.urls.url[format];
+            // conditionally return early if no url is available
+            if (!url) return;
+
+            // change the font url protocol
+            url = url.replace(/^https?:/, defaultOptions.protocol);
+
+            // add the IE hack
+            if (format === 'eot') {
+                url += '?#';
+            }
+
+            // set the format hint and set the source as the url and format hint
+            formatHint = getFormatHint(defaultOptions.formatHints, format);
+            source = getMethod('url', url) + ' ' + getMethod('format', formatHint);
+            sources.push(source);
+        }
+    });
 
-  // if the sources array is filled
-  if (sources.length) {
+    // if the sources array is filled
+    if (sources.length) {
+        // create a font face rule
+        var fontFaceRule = postcss.atRule({
+            name: 'font-face'
+        });
 
-    // create a font face rule
-    var fontFaceRule = postcss.atRule({
-      name: 'font-face'
-    });
+        // append a font-family declaration
+        fontFaceRule.append(
+            postcss.decl({
+                prop: 'font-family',
+                value: getSafelyQuoted(family)
+            })
+        );
 
-    // append a font-family declaration
-    fontFaceRule.append(postcss.decl({
-      prop: 'font-family',
-      value: getSafelyQuoted(family)
-    }));
-
-    // append a font-style declaration
-    fontFaceRule.append(postcss.decl({
-      prop: 'font-style',
-      value: options.style
-    }));
-
-    // append a font-weight declaration
-    fontFaceRule.append(postcss.decl({
-      prop: 'font-weight',
-      value: options.weight
-    }));
-
-    // append a src declaration
-    fontFaceRule.append(postcss.decl({
-      prop: 'src',
-      value: sources.join(',')
-    }));
-
-    // append an unicode-range declaration
-    if (options.ranges) {
-      fontFaceRule.append(postcss.decl({
-        prop: 'unicode-range',
-        value: options.ranges
-      }));
-    }
+        // append a font-style declaration
+        fontFaceRule.append(
+            postcss.decl({
+                prop: 'font-style',
+                value: options.style
+            })
+        );
 
-    // append a font-stretch declaration
-    if (options.stretch) {
-      fontFaceRule.append(postcss.decl({
-        prop: 'font-stretch',
-        value: options.stretch
-      }));
-    }
+        // append a font-weight declaration
+        fontFaceRule.append(
+            postcss.decl({
+                prop: 'font-weight',
+                value: options.weight
+            })
+        );
 
-    // append a font-display declaration
-    if (options.display) {
-      fontFaceRule.append(postcss.decl({
-        prop: 'font-display',
-        value: options.display
-      }));
-    }
+        // append a src declaration
+        fontFaceRule.append(
+            postcss.decl({
+                prop: 'src',
+                value: sources.join(',')
+            })
+        );
 
-    // return the font face rules array
-    return [].concat(fontFaceRules, fontFaceRule);
-  } else {
-    return fontFaceRules;
-  }
-}
+        // append an unicode-range declaration
+        if (options.ranges) {
+            fontFaceRule.append(
+                postcss.decl({
+                    prop: 'unicode-range',
+                    value: options.ranges
+                })
+            );
+        }
+
+        // append a font-stretch declaration
+        if (options.stretch) {
+            fontFaceRule.append(
+                postcss.decl({
+                    prop: 'font-stretch',
+                    value: options.stretch
+                })
+            );
+        }
 
+        // append a font-display declaration
+        if (options.display) {
+            fontFaceRule.append(
+                postcss.decl({
+                    prop: 'font-display',
+                    value: options.display
+                })
+            );
+        }
+
+        // return the font face rules array
+        return [].concat(fontFaceRules, fontFaceRule);
+    } else {
+        return fontFaceRules;
+    }
+}
 
 /* CSS Methods
    ========================================================================== */
 
 function getValueByDeclaration(rule, property) {
-  var index = -1,
-    declaration;
+    var index = -1,
+        declaration;
 
-  while (declaration = rule.nodes[++index]) {
-    if (declaration.prop === property) {
-      return declaration.value;
+    while ((declaration = rule.nodes[++index])) {
+        if (declaration.prop === property) {
+            return declaration.value;
+        }
     }
-  }
 
-  return '';
+    return '';
 }
 
 function getFirstFontFamily(decl) {
-  return getQuoteless(
-    postcss.list.space(
-      postcss.list.comma(decl.value)[0]
-    ).slice(-1)[0]
-  );
+    return getQuoteless(postcss.list.space(postcss.list.comma(decl.value)[0]).slice(-1)[0]);
 }
 
 function getFontFaceRules(family, options) {
-  var weight, style, formats, ranges, stretch, googleWeights, key, splittedValue,
-    // set the font face rules array
-    fontFaceRules = [],
-    // get the font
-    font = getFont(family, options),
-    variants = options.variants;
-
-  // conditionally return early if no font is found
-  if (!font) {
-    return fontFaceRules;
-  }
-
-  if (variants && variants[family] && !options.hosted.length) {
-    for (key in variants[family]) {
-      splittedValue = splitValue(key);
-      weight = splittedValue.weight;
-      style = splittedValue.style;
-      stretch = splittedValue.stretch;
-      formats = variants[family][key][0]
-        ? variants[family][key][0].replace(/\W+/g, ' ').split(' ')
-        : options.formats;
-      ranges = variants[family][key][1]
-        ? variants[family][key][1].toUpperCase()
-        : null;
-      googleWeights = font.variants[style];
-
-      if (googleWeights && googleWeights[weight]) {
-        fontFaceRules = generateFont(
-          family,
-          fontFaceRules,
-          {
-            style: style,
-            urls: googleWeights[weight],
-            weight: weight,
-            formats: formats,
-            ranges: ranges,
-            stretch: stretch,
-            display: options.display
-          },
-          options
-        );
-      }
+    var weight,
+        style,
+        formats,
+        ranges,
+        stretch,
+        googleWeights,
+        key,
+        splittedValue,
+        // set the font face rules array
+        fontFaceRules = [],
+        // get the font
+        font = getFont(family, options),
+        variants = options.variants;
+
+    // conditionally return early if no font is found
+    if (!font) {
+        return fontFaceRules;
     }
-  } else {
-    // for each font style
-    Object.keys(font.variants).forEach(function (style) {
-      // set the font weights
-      var weights = font.variants[style];
-      // for each font weight
-      Object.keys(weights).forEach(function (weight) {
-        var urls = weights[weight];
-        fontFaceRules = generateFont(
-          family,
-          fontFaceRules,
-          {
-            style: style,
-            urls: urls,
-            weight: weight,
-            formats: null,
-            ranges: null,
-            stretch: null,
-            display: options.display
-          },
-          options
-        );
-      });
-    });
-  }
 
-  return fontFaceRules;
-}
-
-function plugin(options) {
-  // get configured option
-  options = getConfiguredOptions(options || {});
-  // set the custom foundry
-  foundries.custom = options.custom;
-
-  // return the plugin
-  return function (css) {
-    // set font families in use
-    var fontFamiliesDeclared = {},
-      hostedIndex,
-      relativePath,
-      relativeFontPath,
-      customFontPath;
-
-    var hostedOption = options.hosted;
-
-    // if hosted fonts are present and permitted
-    if (hostedOption.length) {
-      hostedIndex = options.foundries.indexOf('hosted');
-      if (hostedIndex > 0) {
-        options.foundries.splice(hostedIndex, 1);
-      }
-      options.foundries.unshift('hosted');
-
-      // get the font relative path specified by the user
-      if (typeof hostedOption === 'string') {
-        hostedOption = hostedOption.split();
-      }
-
-      relativePath = removeTrailingSlash(hostedOption[0]);
-
-      // get the relative path relative to the font style file
-      relativeFontPath = css.source.input.file
-        ? getRelativePath(css.source.input.file, relativePath.toString())
-        : null;
-
-      // use the custom font path specified by the user or the relative path
-      customFontPath = hostedOption[1]
-        ? removeTrailingSlash(hostedOption[1])
-        : relativeFontPath;
-
-      // set the hosted fonts by relative directory
-      foundries.hosted = getDirectoryFonts(relativePath, customFontPath, true);
+    if (variants && variants[family] && !options.hosted.length) {
+        for (key in variants[family]) {
+            splittedValue = splitValue(key);
+            weight = splittedValue.weight;
+            style = splittedValue.style;
+            stretch = splittedValue.stretch;
+            formats = variants[family][key][0]
+                ? variants[family][key][0].replace(/\W+/g, ' ').split(' ')
+                : options.formats;
+            ranges = variants[family][key][1] ? variants[family][key][1].toUpperCase() : null;
+            googleWeights = font.variants[style];
+
+            if (googleWeights && googleWeights[weight]) {
+                fontFaceRules = generateFont(
+                    family,
+                    fontFaceRules,
+                    {
+                        style: style,
+                        urls: googleWeights[weight],
+                        weight: weight,
+                        formats: formats,
+                        ranges: ranges,
+                        stretch: stretch,
+                        display: options.display
+                    },
+                    options
+                );
+            }
+        }
     } else {
-      // otherwise delete the hosted foundries
-      delete foundries.hosted;
+        // for each font style
+        Object.keys(font.variants).forEach(function(style) {
+            // set the font weights
+            var weights = font.variants[style];
+            // for each font weight
+            Object.keys(weights).forEach(function(weight) {
+                var urls = weights[weight];
+                fontFaceRules = generateFont(
+                    family,
+                    fontFaceRules,
+                    {
+                        style: style,
+                        urls: urls,
+                        weight: weight,
+                        formats: null,
+                        ranges: null,
+                        stretch: null,
+                        display: options.display
+                    },
+                    options
+                );
+            });
+        });
     }
 
-    // for each font face rule
-    css.walkAtRules('font-face', function (rule) {
-      // for each font-family declaration
-      rule.walkDecls('font-family', function (decl) {
-        // set the font family
-        var family = getQuoteless(decl.value);
-
-        // set the font family as declared
-        fontFamiliesDeclared[family] = true;
-      });
-    });
-
-    // for each font declaration
-    css.walkDecls(/^font(-family)?$/, function (decl) {
-      // set the font family as the first declared font family
-      var family = getFirstFontFamily(decl);
-
-      // if the font family is not declared
-      if (!fontFamiliesDeclared[family]) {
-        // set the font family as declared
-        fontFamiliesDeclared[family] = true;
-
-        // set the font face rules
-        var fontFaceRules = getFontFaceRules(family, options);
+    return fontFaceRules;
+}
 
-        // if the font face rules array is filled
-        if (fontFaceRules.length) {
-          // prepend the font face rules
-          css.prepend(fontFaceRules);
+function plugin(options) {
+    // get configured option
+    options = getConfiguredOptions(options || {});
+    // set the custom foundry
+    foundries.custom = options.custom;
+
+    // return the plugin
+    return function(css) {
+        // set font families in use
+        var fontFamiliesDeclared = {},
+            hostedIndex,
+            relativePath,
+            relativeFontPath,
+            customFontPath;
+
+        var hostedOption = options.hosted;
+
+        // if hosted fonts are present and permitted
+        if (hostedOption.length) {
+            hostedIndex = options.foundries.indexOf('hosted');
+            if (hostedIndex > 0) {
+                options.foundries.splice(hostedIndex, 1);
+            }
+            options.foundries.unshift('hosted');
+
+            // get the font relative path specified by the user
+            if (typeof hostedOption === 'string') {
+                hostedOption = hostedOption.split();
+            }
+
+            relativePath = removeTrailingSlash(hostedOption[0]);
+
+            // get the relative path relative to the font style file
+            relativeFontPath = css.source.input.file
+                ? getRelativePath(css.source.input.file, relativePath.toString())
+                : null;
+
+            // use the custom font path specified by the user or the relative path
+            customFontPath = hostedOption[1]
+                ? removeTrailingSlash(hostedOption[1])
+                : relativeFontPath;
+
+            // set the hosted fonts by relative directory
+            foundries.hosted = getDirectoryFonts(relativePath, customFontPath, true);
+        } else {
+            // otherwise delete the hosted foundries
+            delete foundries.hosted;
         }
-      }
-    });
 
-    if (options.async) {
-      var fontFaces = [];
+        // for each font face rule
+        css.walkAtRules('font-face', function(rule) {
+            // for each font-family declaration
+            rule.walkDecls('font-family', function(decl) {
+                // set the font family
+                var family = getQuoteless(decl.value);
 
-      // for each font face rule
-      css.walkAtRules('font-face', function (rule) {
-        rule.remove();
-
-        fontFaces.push({
-          family: getValueByDeclaration(rule, 'font-family'),
-          weight: getValueByDeclaration(rule, 'font-weight'),
-          style: getValueByDeclaration(rule, 'font-style'),
-          src: getValueByDeclaration(rule, 'src')
+                // set the font family as declared
+                fontFamiliesDeclared[family] = true;
+            });
         });
-      });
-
-      if (fontFaces) {
-        var asyncPath = getRelativePath(css.source.input.file, options.async);
 
-        var asyncJs = '(function(){' +
-          fs.readFileSync('loader.min.js', 'utf8') + 'loadFonts(' + JSON.stringify(fontFaces) + ')' +
-          '})()';
+        // for each font declaration
+        css.walkDecls(/^font(-family)?$/, function(decl) {
+            // set the font family as the first declared font family
+            var family = getFirstFontFamily(decl);
+
+            // if the font family is not declared
+            if (!fontFamiliesDeclared[family]) {
+                // set the font family as declared
+                fontFamiliesDeclared[family] = true;
+
+                // set the font face rules
+                var fontFaceRules = getFontFaceRules(family, options);
+
+                // if the font face rules array is filled
+                if (fontFaceRules.length) {
+                    // prepend the font face rules
+                    css.prepend(fontFaceRules);
+                }
+            }
+        });
 
-        fs.writeFileSync(asyncPath, asyncJs);
-      }
-    }
-  };
+        if (options.async) {
+            var fontFaces = [];
+
+            // for each font face rule
+            css.walkAtRules('font-face', function(rule) {
+                rule.remove();
+
+                fontFaces.push({
+                    family: getValueByDeclaration(rule, 'font-family'),
+                    weight: getValueByDeclaration(rule, 'font-weight'),
+                    style: getValueByDeclaration(rule, 'font-style'),
+                    src: getValueByDeclaration(rule, 'src')
+                });
+            });
+
+            if (fontFaces) {
+                var asyncPath = getRelativePath(css.source.input.file, options.async);
+
+                var asyncJs =
+                    '(function(){' +
+                    fs.readFileSync('loader.min.js', 'utf8') +
+                    'loadFonts(' +
+                    JSON.stringify(fontFaces) +
+                    ')' +
+                    '})()';
+
+                fs.writeFileSync(asyncPath, asyncJs);
+            }
+        }
+    };
 }
 
 // set plugin
diff --git a/package.json b/package.json
index d836805..abaf1ff 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,7 @@
 {
   "name": "postcss-font-magician",
-  "version": "2.1.1",
-  "description":
-    "PostCSS plugin that magically generates all the @font-face rules",
+  "version": "2.2.0",
+  "description": "PostCSS plugin that magically generates all the @font-face rules",
   "author": "Jonathan Neal <jonathantneal@hotmail.com>",
   "contributors": [
     "Jonathan Neal <jonathantneal@hotmail.com>",
@@ -16,28 +15,33 @@
   "scripts": {
     "clean": "git clean -X -d -f",
     "precommit": "lint-staged",
-    "test":
-      "echo 'Running tests...'; ./node_modules/.bin/mocha && npm run lint",
+    "test": "echo 'Running tests...'; ./node_modules/.bin/mocha && npm run lint",
     "lint": "./node_modules/.bin/eslint index.js"
   },
   "engines": {
-    "node": ">=4.0.0"
+    "node": ">=6.4.0"
   },
   "lint-staged": {
-    "*.js": ["npm run test --", "git add"]
+    "*.js": [
+      "npm run test --",
+      "git add"
+    ]
   },
   "dependencies": {
     "bootstrap-fonts-complete": "^1.0.0",
     "directory-fonts-complete": "^1.2.0",
     "google-fonts-complete": "^1.2.1",
-    "postcss": "^6.0.1"
+    "postcss": "^6.0.22"
   },
   "devDependencies": {
     "chai": "^4.1.2",
     "eslint": "^4.19.1",
+    "eslint-config-prettier": "^2.9.0",
+    "eslint-plugin-prettier": "^2.6.0",
     "husky": "^0.14.3",
     "lint-staged": "^7.0.1",
-    "mocha": "^5.0.5"
+    "mocha": "^5.2.0",
+    "prettier": "^1.13.4"
   },
   "keywords": [
     "postcss",
diff --git a/yarn.lock b/yarn.lock
index 8d19617..707bbc7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,12 @@
 # yarn lockfile v1
 
 
+"@samverschueren/stream-to-observable@^0.3.0":
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/@samverschueren/stream-to-observable/-/stream-to-observable-0.3.0.tgz#ecdf48d532c58ea477acfcab80348424f8d0662f"
+  dependencies:
+    any-observable "^0.3.0"
+
 acorn-jsx@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
@@ -13,8 +19,8 @@ acorn@^3.0.4:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
 
 acorn@^5.5.0:
-  version "5.5.3"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.5.3.tgz#f473dd47e0277a08e28e9bec5aeeb04751f0b8c9"
+  version "5.6.2"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.6.2.tgz#b1da1d7be2ac1b4a327fb9eab851702c5045b4e7"
 
 ajv-keywords@^2.1.0:
   version "2.1.1"
@@ -33,6 +39,10 @@ amdefine@>=0.0.4:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
 
+ansi-escapes@^1.0.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-1.4.0.tgz#d3a8a83b319aa67793662b13e761c7911422306e"
+
 ansi-escapes@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.1.0.tgz#f73207bb81207d75fd6c83f125af26eea378ca30"
@@ -49,18 +59,38 @@ ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
 
-ansi-styles@^3.2.1:
+ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   version "3.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
   dependencies:
     color-convert "^1.9.0"
 
+any-observable@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/any-observable/-/any-observable-0.3.0.tgz#af933475e5806a67d0d7df090dd5e8bef65d119b"
+
+app-root-path@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/app-root-path/-/app-root-path-2.0.1.tgz#cd62dcf8e4fd5a417efc664d2e5b10653c651b46"
+
 argparse@^1.0.7:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.10.tgz#bcd6791ea5ae09725e17e5ad988134cd40b3d911"
   dependencies:
     sprintf-js "~1.0.2"
 
+arr-diff@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-4.0.0.tgz#d6461074febfec71e7e15235761a329a5dc7c520"
+
+arr-flatten@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/arr-flatten/-/arr-flatten-1.1.0.tgz#36048bbff4e7b47e136644316c99669ea5ae91f1"
+
+arr-union@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/arr-union/-/arr-union-3.1.0.tgz#e39b09aea9def866a8f206e288af63919bae39c4"
+
 array-union@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-union/-/array-union-1.0.2.tgz#9a34410e4f4e3da23dea375be5be70f24778ec39"
@@ -71,6 +101,10 @@ array-uniq@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/array-uniq/-/array-uniq-1.0.3.tgz#af6ac877a25cc7f74e058894753858dfdb24fdb6"
 
+array-unique@^0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
+
 arrify@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/arrify/-/arrify-1.0.1.tgz#898508da2226f380df904728456849c1501a4b0d"
@@ -79,6 +113,14 @@ assertion-error@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-1.1.0.tgz#e60b6b0e8f301bd97e5375215bda406c85118c0b"
 
+assign-symbols@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
+
+atob@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.1.tgz#ae2d5a729477f289d60dd7f96a6314a22dd6c22a"
+
 b3b@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/b3b/-/b3b-0.0.1.tgz#ff69f8a58d891ac732b20175e47546799754ef9b"
@@ -96,8 +138,20 @@ balanced-match@^1.0.0:
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
 
 base64-js@^1.1.2:
-  version "1.2.3"
-  resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.2.3.tgz#fb13668233d9614cf5fb4bce95a9ba4096cdf801"
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.3.0.tgz#cab1e6118f051095e58b5281aea8c1cd22bfc0e3"
+
+base@^0.11.1:
+  version "0.11.2"
+  resolved "https://registry.yarnpkg.com/base/-/base-0.11.2.tgz#7bde5ced145b6d551a90db87f83c558b4eb48a8f"
+  dependencies:
+    cache-base "^1.0.1"
+    class-utils "^0.3.5"
+    component-emitter "^1.2.1"
+    define-property "^1.0.0"
+    isobject "^3.0.1"
+    mixin-deep "^1.2.0"
+    pascalcase "^0.1.1"
 
 bootstrap-fonts-complete@^1.0.0:
   version "1.0.0"
@@ -112,6 +166,21 @@ brace-expansion@^1.1.7:
     balanced-match "^1.0.0"
     concat-map "0.0.1"
 
+braces@^2.3.1:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/braces/-/braces-2.3.2.tgz#5979fd3f14cd531565e5fa2df1abfff1dfaee729"
+  dependencies:
+    arr-flatten "^1.1.0"
+    array-unique "^0.3.2"
+    extend-shallow "^2.0.1"
+    fill-range "^4.0.0"
+    isobject "^3.0.1"
+    repeat-element "^1.1.2"
+    snapdragon "^0.8.1"
+    snapdragon-node "^2.0.1"
+    split-string "^3.0.2"
+    to-regex "^3.0.1"
+
 brotli@^1.3.2:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/brotli/-/brotli-1.3.2.tgz#525a9cad4fcba96475d7d388f6aecb13eed52f46"
@@ -123,8 +192,22 @@ browser-stdout@1.3.1:
   resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.1.tgz#baa559ee14ced73452229bad7326467c61fabd60"
 
 buffer-from@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.0.0.tgz#4cb8832d23612589b0406e9e2956c17f06fdf531"
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.0.tgz#87fcaa3a298358e0ade6e442cfce840740d1ad04"
+
+cache-base@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/cache-base/-/cache-base-1.0.1.tgz#0a7f46416831c8b662ee36fe4e7c59d76f666ab2"
+  dependencies:
+    collection-visit "^1.0.0"
+    component-emitter "^1.2.1"
+    get-value "^2.0.6"
+    has-value "^1.0.0"
+    isobject "^3.0.1"
+    set-value "^2.0.0"
+    to-object-path "^0.3.0"
+    union-value "^1.0.0"
+    unset-value "^1.0.0"
 
 caller-path@^0.1.0:
   version "0.1.0"
@@ -147,7 +230,7 @@ chai@^4.1.2:
     pathval "^1.0.0"
     type-detect "^4.0.0"
 
-chalk@^1.1.3:
+chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   dependencies:
@@ -157,9 +240,9 @@ chalk@^1.1.3:
     strip-ansi "^3.0.0"
     supports-color "^2.0.0"
 
-chalk@^2.0.0, chalk@^2.1.0, chalk@^2.3.2:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.3.2.tgz#250dc96b07491bfd601e648d66ddf5f60c7a5c65"
+chalk@^2.0.0, chalk@^2.0.1, chalk@^2.1.0, chalk@^2.3.1, chalk@^2.4.1:
+  version "2.4.1"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.1.tgz#18c49ab16a037b6eb0152cc83e3471338215b66e"
   dependencies:
     ansi-styles "^3.2.1"
     escape-string-regexp "^1.0.5"
@@ -173,16 +256,46 @@ check-error@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
 
+ci-info@^1.0.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/ci-info/-/ci-info-1.1.3.tgz#710193264bb05c77b8c90d02f5aaf22216a667b2"
+
 circular-json@^0.3.1:
   version "0.3.3"
   resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.3.tgz#815c99ea84f6809529d2f45791bdf82711352d66"
 
+class-utils@^0.3.5:
+  version "0.3.6"
+  resolved "https://registry.yarnpkg.com/class-utils/-/class-utils-0.3.6.tgz#f93369ae8b9a7ce02fd41faad0ca83033190c463"
+  dependencies:
+    arr-union "^3.1.0"
+    define-property "^0.2.5"
+    isobject "^3.0.0"
+    static-extend "^0.1.1"
+
+cli-cursor@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-1.0.2.tgz#64da3f7d56a54412e59794bd62dc35295e8f2987"
+  dependencies:
+    restore-cursor "^1.0.1"
+
 cli-cursor@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
   dependencies:
     restore-cursor "^2.0.0"
 
+cli-spinners@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/cli-spinners/-/cli-spinners-0.1.2.tgz#bb764d88e185fb9e1e6a2a1f19772318f605e31c"
+
+cli-truncate@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/cli-truncate/-/cli-truncate-0.2.1.tgz#9f15cfbb0705005369216c626ac7d05ab90dd574"
+  dependencies:
+    slice-ansi "0.0.4"
+    string-width "^1.0.1"
+
 cli-width@^2.0.0:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
@@ -191,6 +304,17 @@ co@^4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
 
+code-point-at@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
+
+collection-visit@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/collection-visit/-/collection-visit-1.0.0.tgz#4bc0373c164bc3291b4d368c829cf1a80a59dca0"
+  dependencies:
+    map-visit "^1.0.0"
+    object-visit "^1.0.0"
+
 color-convert@^1.9.0:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.1.tgz#c1261107aeb2f294ebffec9ed9ecad529a6097ed"
@@ -201,9 +325,13 @@ color-name@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
 
-commander@2.11.0:
-  version "2.11.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.11.0.tgz#157152fd1e7a6c8d98a5b715cf376df928004563"
+commander@2.15.1, commander@^2.14.1, commander@^2.9.0:
+  version "2.15.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.15.1.tgz#df46e867d0fc2aec66a34662b406a9ccafff5b0f"
+
+component-emitter@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
 
 concat-map@0.0.1:
   version "0.0.1"
@@ -218,11 +346,23 @@ concat-stream@^1.6.0:
     readable-stream "^2.2.2"
     typedarray "^0.0.6"
 
+copy-descriptor@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
+
 core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
-cross-spawn@^5.1.0:
+cosmiconfig@^5.0.2:
+  version "5.0.5"
+  resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.0.5.tgz#a809e3c2306891ce17ab70359dc8bdf661fe2cd0"
+  dependencies:
+    is-directory "^0.3.1"
+    js-yaml "^3.9.0"
+    parse-json "^4.0.0"
+
+cross-spawn@^5.0.1, cross-spawn@^5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
   dependencies:
@@ -230,12 +370,30 @@ cross-spawn@^5.1.0:
     shebang-command "^1.2.0"
     which "^1.2.9"
 
+date-fns@^1.27.2:
+  version "1.29.0"
+  resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-1.29.0.tgz#12e609cdcb935127311d04d33334e2960a2a54e6"
+
 debug@3.1.0, debug@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
   dependencies:
     ms "2.0.0"
 
+debug@^2.2.0, debug@^2.3.3:
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
+  dependencies:
+    ms "2.0.0"
+
+decode-uri-component@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
+
+dedent@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.7.0.tgz#2495ddbaf6eb874abb0e1be9df22d2e5a544326c"
+
 deep-eql@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-3.0.1.tgz#dfc9404400ad1c8fe023e7da1df1c147c4b444df"
@@ -246,6 +404,25 @@ deep-is@~0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
 
+define-property@^0.2.5:
+  version "0.2.5"
+  resolved "https://registry.yarnpkg.com/define-property/-/define-property-0.2.5.tgz#c35b1ef918ec3c990f9a5bc57be04aacec5c8116"
+  dependencies:
+    is-descriptor "^0.1.0"
+
+define-property@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/define-property/-/define-property-1.0.0.tgz#769ebaaf3f4a63aad3af9e8d304c9bbe79bfb0e6"
+  dependencies:
+    is-descriptor "^1.0.0"
+
+define-property@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/define-property/-/define-property-2.0.2.tgz#d459689e8d654ba77e02a817f8710d702cb16e9d"
+  dependencies:
+    is-descriptor "^1.0.2"
+    isobject "^3.0.1"
+
 del@^2.0.2:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/del/-/del-2.2.2.tgz#c12c981d067846c84bcaf862cff930d907ffd1a8"
@@ -279,6 +456,16 @@ doctrine@^2.1.0:
   dependencies:
     esutils "^2.0.2"
 
+elegant-spinner@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/elegant-spinner/-/elegant-spinner-1.0.1.tgz#db043521c95d7e303fd8f345bedc3349cfb0729e"
+
+error-ex@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.1.tgz#f855a86ce61adc4e8621c3cda21e7a7612c3a8dc"
+  dependencies:
+    is-arrayish "^0.2.1"
+
 es6-promise@~2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-2.3.0.tgz#96edb9f2fdb01995822b263dd8aadab6748181bc"
@@ -287,6 +474,19 @@ escape-string-regexp@1.0.5, escape-string-regexp@^1.0.2, escape-string-regexp@^1
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
 
+eslint-config-prettier@^2.9.0:
+  version "2.9.0"
+  resolved "https://registry.yarnpkg.com/eslint-config-prettier/-/eslint-config-prettier-2.9.0.tgz#5ecd65174d486c22dff389fe036febf502d468a3"
+  dependencies:
+    get-stdin "^5.0.1"
+
+eslint-plugin-prettier@^2.6.0:
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-prettier/-/eslint-plugin-prettier-2.6.0.tgz#33e4e228bdb06142d03c560ce04ec23f6c767dd7"
+  dependencies:
+    fast-diff "^1.1.1"
+    jest-docblock "^21.0.0"
+
 eslint-scope@^3.7.1:
   version "3.7.1"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
@@ -353,8 +553,8 @@ esprima@^4.0.0:
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.0.tgz#4499eddcd1110e0b218bacf2fa7f7f59f55ca804"
 
 esquery@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.0.tgz#cfba8b57d7fba93f17298a8a006a04cda13d80fa"
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.1.tgz#406c51658b1f5991a5f9b62b1dc25b00e3e5c708"
   dependencies:
     estraverse "^4.0.0"
 
@@ -372,18 +572,76 @@ esutils@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
 
+execa@^0.9.0:
+  version "0.9.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-0.9.0.tgz#adb7ce62cf985071f60580deb4a88b9e34712d01"
+  dependencies:
+    cross-spawn "^5.0.1"
+    get-stream "^3.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
+exit-hook@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/exit-hook/-/exit-hook-1.1.1.tgz#f05ca233b48c05d54fff07765df8507e95c02ff8"
+
+expand-brackets@^2.1.4:
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-2.1.4.tgz#b77735e315ce30f6b6eff0f83b04151a22449622"
+  dependencies:
+    debug "^2.3.3"
+    define-property "^0.2.5"
+    extend-shallow "^2.0.1"
+    posix-character-classes "^0.1.0"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
+extend-shallow@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
+  dependencies:
+    is-extendable "^0.1.0"
+
+extend-shallow@^3.0.0, extend-shallow@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-3.0.2.tgz#26a71aaf073b39fb2127172746131c2704028db8"
+  dependencies:
+    assign-symbols "^1.0.0"
+    is-extendable "^1.0.1"
+
 external-editor@^2.0.4:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.1.0.tgz#3d026a21b7f95b5726387d4200ac160d372c3b48"
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.2.0.tgz#045511cfd8d133f3846673d1047c154e214ad3d5"
   dependencies:
     chardet "^0.4.0"
     iconv-lite "^0.4.17"
     tmp "^0.0.33"
 
+extglob@^2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/extglob/-/extglob-2.0.4.tgz#ad00fe4dc612a9232e8718711dc5cb5ab0285543"
+  dependencies:
+    array-unique "^0.3.2"
+    define-property "^1.0.0"
+    expand-brackets "^2.1.4"
+    extend-shallow "^2.0.1"
+    fragment-cache "^0.2.1"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
 fast-deep-equal@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz#c053477817c86b51daa853c81e059b733d023614"
 
+fast-diff@^1.1.1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/fast-diff/-/fast-diff-1.1.2.tgz#4b62c42b8e03de3f848460b639079920695d0154"
+
 fast-json-stable-stringify@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
@@ -392,6 +650,13 @@ fast-levenshtein@~2.0.4:
   version "2.0.6"
   resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
 
+figures@^1.7.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/figures/-/figures-1.7.0.tgz#cbe1e3affcf1cd44b80cadfed28dc793a9701d2e"
+  dependencies:
+    escape-string-regexp "^1.0.5"
+    object-assign "^4.1.0"
+
 figures@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/figures/-/figures-2.0.0.tgz#3ab1a2d2a62c8bfb431a0c94cb797a2fce27c962"
@@ -405,6 +670,19 @@ file-entry-cache@^2.0.0:
     flat-cache "^1.2.1"
     object-assign "^4.0.1"
 
+fill-range@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-4.0.0.tgz#d544811d428f98eb06a63dc402d2403c328c38f7"
+  dependencies:
+    extend-shallow "^2.0.1"
+    is-number "^3.0.0"
+    repeat-string "^1.6.1"
+    to-regex-range "^2.1.0"
+
+find-parent-dir@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/find-parent-dir/-/find-parent-dir-0.3.0.tgz#33c44b429ab2b2f0646299c5f9f718f376ff8d54"
+
 flat-cache@^1.2.1:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.3.0.tgz#d3030b32b38154f4e3b7e9c709f490f7ef97c481"
@@ -414,6 +692,16 @@ flat-cache@^1.2.1:
     graceful-fs "^4.1.2"
     write "^0.2.1"
 
+for-in@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
+
+fragment-cache@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/fragment-cache/-/fragment-cache-0.2.1.tgz#4290fad27f13e89be7f33799c6bc5a0abfff0d19"
+  dependencies:
+    map-cache "^0.2.2"
+
 fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
@@ -426,6 +714,22 @@ get-func-name@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/get-func-name/-/get-func-name-2.0.0.tgz#ead774abee72e20409433a066366023dd6887a41"
 
+get-own-enumerable-property-symbols@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/get-own-enumerable-property-symbols/-/get-own-enumerable-property-symbols-2.0.1.tgz#5c4ad87f2834c4b9b4e84549dc1e0650fb38c24b"
+
+get-stdin@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/get-stdin/-/get-stdin-5.0.1.tgz#122e161591e21ff4c52530305693f20e6393a398"
+
+get-stream@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
+
+get-value@^2.0.3, get-value@^2.0.6:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/get-value/-/get-value-2.0.6.tgz#dc15ca1c672387ca76bd37ac0a395ba2042a2c28"
+
 glob@7.1.2, glob@^7.0.3, glob@^7.0.5, glob@^7.1.2:
   version "7.1.2"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
@@ -438,8 +742,8 @@ glob@7.1.2, glob@^7.0.3, glob@^7.0.5, glob@^7.1.2:
     path-is-absolute "^1.0.0"
 
 globals@^11.0.1:
-  version "11.4.0"
-  resolved "https://registry.yarnpkg.com/globals/-/globals-11.4.0.tgz#b85c793349561c16076a3c13549238a27945f1bc"
+  version "11.5.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.5.0.tgz#6bc840de6771173b191f13d3a9c94d441ee92642"
 
 globby@^5.0.0:
   version "5.0.0"
@@ -462,9 +766,9 @@ graceful-fs@^4.1.2:
   version "4.1.11"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.11.tgz#0e8bdfe4d1ddb8854d64e04ea7c00e2a026e5658"
 
-growl@1.10.3:
-  version "1.10.3"
-  resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.3.tgz#1926ba90cf3edfe2adb4927f5880bc22c66c790f"
+growl@1.10.5:
+  version "1.10.5"
+  resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.5.tgz#f2735dc2283674fa67478b10181059355c369e5e"
 
 has-ansi@^2.0.0:
   version "2.0.0"
@@ -472,30 +776,73 @@ has-ansi@^2.0.0:
   dependencies:
     ansi-regex "^2.0.0"
 
-has-flag@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-2.0.0.tgz#e8207af1cc7b30d446cc70b734b5e8be18f88d51"
-
 has-flag@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
 
+has-value@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/has-value/-/has-value-0.3.1.tgz#7b1f58bada62ca827ec0a2078025654845995e1f"
+  dependencies:
+    get-value "^2.0.3"
+    has-values "^0.1.4"
+    isobject "^2.0.0"
+
+has-value@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-value/-/has-value-1.0.0.tgz#18b281da585b1c5c51def24c930ed29a0be6b177"
+  dependencies:
+    get-value "^2.0.6"
+    has-values "^1.0.0"
+    isobject "^3.0.0"
+
+has-values@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/has-values/-/has-values-0.1.4.tgz#6d61de95d91dfca9b9a02089ad384bff8f62b771"
+
+has-values@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-values/-/has-values-1.0.0.tgz#95b0b63fec2146619a6fe57fe75628d5a39efe4f"
+  dependencies:
+    is-number "^3.0.0"
+    kind-of "^4.0.0"
+
 he@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/he/-/he-1.1.1.tgz#93410fd21b009735151f8868c2f271f3427e23fd"
 
+husky@^0.14.3:
+  version "0.14.3"
+  resolved "https://registry.yarnpkg.com/husky/-/husky-0.14.3.tgz#c69ed74e2d2779769a17ba8399b54ce0b63c12c3"
+  dependencies:
+    is-ci "^1.0.10"
+    normalize-path "^1.0.0"
+    strip-indent "^2.0.0"
+
 iconv-lite@^0.4.17:
-  version "0.4.19"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.19.tgz#f7468f60135f5e5dad3399c0a81be9a1603a082b"
+  version "0.4.23"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.23.tgz#297871f63be507adcfbfca715d0cd0eed84e9a63"
+  dependencies:
+    safer-buffer ">= 2.1.2 < 3"
 
 ignore@^3.3.3:
-  version "3.3.7"
-  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.7.tgz#612289bfb3c220e186a58118618d5be8c1bab021"
+  version "3.3.8"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.8.tgz#3f8e9c35d38708a3a7e0e9abb6c73e7ee7707b2b"
 
 imurmurhash@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
 
+indent-string@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-2.1.0.tgz#8e2d48348742121b4a8218b7a137e9a52049dc80"
+  dependencies:
+    repeating "^2.0.0"
+
+indent-string@^3.0.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-3.2.0.tgz#4a5fd6d27cc332f37e5419a504dbb837105c9289"
+
 inflight@^1.0.4:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
@@ -526,14 +873,130 @@ inquirer@^3.0.6:
     strip-ansi "^4.0.0"
     through "^2.3.6"
 
+is-accessor-descriptor@^0.1.6:
+  version "0.1.6"
+  resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz#a9e12cb3ae8d876727eeef3843f8a0897b5c98d6"
+  dependencies:
+    kind-of "^3.0.2"
+
+is-accessor-descriptor@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz#169c2f6d3df1f992618072365c9b0ea1f6878656"
+  dependencies:
+    kind-of "^6.0.0"
+
+is-arrayish@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
+
+is-buffer@^1.1.5:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
+
+is-ci@^1.0.10:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-ci/-/is-ci-1.1.0.tgz#247e4162e7860cebbdaf30b774d6b0ac7dcfe7a5"
+  dependencies:
+    ci-info "^1.0.0"
+
+is-data-descriptor@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz#0b5ee648388e2c860282e793f1856fec3f301b56"
+  dependencies:
+    kind-of "^3.0.2"
+
+is-data-descriptor@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz#d84876321d0e7add03990406abbbbd36ba9268c7"
+  dependencies:
+    kind-of "^6.0.0"
+
+is-descriptor@^0.1.0:
+  version "0.1.6"
+  resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-0.1.6.tgz#366d8240dde487ca51823b1ab9f07a10a78251ca"
+  dependencies:
+    is-accessor-descriptor "^0.1.6"
+    is-data-descriptor "^0.1.4"
+    kind-of "^5.0.0"
+
+is-descriptor@^1.0.0, is-descriptor@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-1.0.2.tgz#3b159746a66604b04f8c81524ba365c5f14d86ec"
+  dependencies:
+    is-accessor-descriptor "^1.0.0"
+    is-data-descriptor "^1.0.0"
+    kind-of "^6.0.2"
+
+is-directory@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/is-directory/-/is-directory-0.3.1.tgz#61339b6f2475fc772fd9c9d83f5c8575dc154ae1"
+
 is-eot@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-eot/-/is-eot-1.0.0.tgz#e849c40f0e18a6853c0d6b6bac24ef1f2c739e6b"
 
+is-extendable@^0.1.0, is-extendable@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-0.1.1.tgz#62b110e289a471418e3ec36a617d472e301dfc89"
+
+is-extendable@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-1.0.1.tgz#a7470f9e426733d81bd81e1155264e3a3507cab4"
+  dependencies:
+    is-plain-object "^2.0.4"
+
+is-extglob@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-2.1.1.tgz#a88c02535791f02ed37c76a1b9ea9773c833f8c2"
+
+is-finite@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-finite/-/is-finite-1.0.2.tgz#cc6677695602be550ef11e8b4aa6305342b6d0aa"
+  dependencies:
+    number-is-nan "^1.0.0"
+
+is-fullwidth-code-point@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz#ef9e31386f031a7f0d643af82fde50c457ef00cb"
+  dependencies:
+    number-is-nan "^1.0.0"
+
 is-fullwidth-code-point@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
 
+is-glob@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-4.0.0.tgz#9521c76845cc2610a85203ddf080a958c2ffabc0"
+  dependencies:
+    is-extglob "^2.1.1"
+
+is-number@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-3.0.0.tgz#24fd6201a4782cf50561c810276afc7d12d71195"
+  dependencies:
+    kind-of "^3.0.2"
+
+is-number@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-4.0.0.tgz#0026e37f5454d73e356dfe6564699867c6a7f0ff"
+
+is-obj@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
+
+is-observable@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-observable/-/is-observable-1.1.0.tgz#b3e986c8f44de950867cab5403f5a3465005975e"
+  dependencies:
+    symbol-observable "^1.1.0"
+
+is-odd@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-odd/-/is-odd-2.0.0.tgz#7646624671fd7ea558ccd9a2795182f2958f1b24"
+  dependencies:
+    is-number "^4.0.0"
+
 is-otf@^0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/is-otf/-/is-otf-0.1.2.tgz#5a6e2ab3a0b13b92a2912c1a95c73b5a574b44cc"
@@ -556,20 +1019,38 @@ is-path-inside@^1.0.0:
   dependencies:
     path-is-inside "^1.0.1"
 
+is-plain-object@^2.0.1, is-plain-object@^2.0.3, is-plain-object@^2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-2.0.4.tgz#2c163b3fafb1b606d9d17928f05c2a1c38e07677"
+  dependencies:
+    isobject "^3.0.1"
+
 is-promise@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
 
+is-regexp@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-regexp/-/is-regexp-1.0.0.tgz#fd2d883545c46bac5a633e7b9a09e87fa2cb5069"
+
 is-resolvable@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
 
+is-stream@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
+
 is-ttf@^0.2.1:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/is-ttf/-/is-ttf-0.2.2.tgz#7155824a33867ee4fa89c79e615e3d4716eb1b3a"
   dependencies:
     b3b "0.0.1"
 
+is-windows@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
+
 is-woff2@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-woff2/-/is-woff2-1.0.0.tgz#5eb9cad96d9c3d1d384f26792f95324e1582edd8"
@@ -578,7 +1059,7 @@ is-woff@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/is-woff/-/is-woff-1.0.3.tgz#4951de604a9218f458c2c18c64c835802e02fa6b"
 
-isarray@~1.0.0:
+isarray@1.0.0, isarray@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
 
@@ -586,6 +1067,33 @@ isexe@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
 
+isobject@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/isobject/-/isobject-2.1.0.tgz#f065561096a3f1da2ef46272f815c840d87e0c89"
+  dependencies:
+    isarray "1.0.0"
+
+isobject@^3.0.0, isobject@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"
+
+jest-docblock@^21.0.0:
+  version "21.2.0"
+  resolved "https://registry.yarnpkg.com/jest-docblock/-/jest-docblock-21.2.0.tgz#51529c3b30d5fd159da60c27ceedc195faf8d414"
+
+jest-get-type@^22.1.0:
+  version "22.4.3"
+  resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-22.4.3.tgz#e3a8504d8479342dd4420236b322869f18900ce4"
+
+jest-validate@^23.0.0:
+  version "23.0.1"
+  resolved "https://registry.yarnpkg.com/jest-validate/-/jest-validate-23.0.1.tgz#cd9f01a89d26bb885f12a8667715e9c865a5754f"
+  dependencies:
+    chalk "^2.0.1"
+    jest-get-type "^22.1.0"
+    leven "^2.1.0"
+    pretty-format "^23.0.1"
+
 js-base64@~2.1.8:
   version "2.1.9"
   resolved "https://registry.yarnpkg.com/js-base64/-/js-base64-2.1.9.tgz#f0e80ae039a4bd654b5f281fc93f04a914a7fcce"
@@ -594,13 +1102,17 @@ js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
-js-yaml@^3.9.1:
-  version "3.11.0"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.11.0.tgz#597c1a8bd57152f26d622ce4117851a51f5ebaef"
+js-yaml@^3.9.0, js-yaml@^3.9.1:
+  version "3.12.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
   dependencies:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
+json-parse-better-errors@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/json-parse-better-errors/-/json-parse-better-errors-1.0.2.tgz#bb867cfb3450e69107c131d1c514bab3dc8bcaa9"
+
 json-schema-traverse@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz#349a6d44c53a51de89b40805c5d5e59b417d3340"
@@ -609,6 +1121,30 @@ json-stable-stringify-without-jsonify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
 
+kind-of@^3.0.2, kind-of@^3.0.3, kind-of@^3.2.0:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-3.2.2.tgz#31ea21a734bab9bbb0f32466d893aea51e4a3c64"
+  dependencies:
+    is-buffer "^1.1.5"
+
+kind-of@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-4.0.0.tgz#20813df3d712928b207378691a45066fae72dd57"
+  dependencies:
+    is-buffer "^1.1.5"
+
+kind-of@^5.0.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-5.1.0.tgz#729c91e2d857b7a419a1f9aa65685c4c33f5845d"
+
+kind-of@^6.0.0, kind-of@^6.0.2:
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
+
+leven@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/leven/-/leven-2.1.0.tgz#c2e7a9f772094dee9d34202ae8acce4687875580"
+
 levn@^0.3.0, levn@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
@@ -616,22 +1152,144 @@ levn@^0.3.0, levn@~0.3.0:
     prelude-ls "~1.1.2"
     type-check "~0.3.2"
 
-lodash@^4.17.4, lodash@^4.3.0:
-  version "4.17.5"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
+lint-staged@^7.0.1:
+  version "7.1.3"
+  resolved "https://registry.yarnpkg.com/lint-staged/-/lint-staged-7.1.3.tgz#0eb77b42131653808e02bc0eba66ad8ff8a8ca1f"
+  dependencies:
+    app-root-path "^2.0.1"
+    chalk "^2.3.1"
+    commander "^2.14.1"
+    cosmiconfig "^5.0.2"
+    debug "^3.1.0"
+    dedent "^0.7.0"
+    execa "^0.9.0"
+    find-parent-dir "^0.3.0"
+    is-glob "^4.0.0"
+    is-windows "^1.0.2"
+    jest-validate "^23.0.0"
+    listr "^0.14.1"
+    lodash "^4.17.5"
+    log-symbols "^2.2.0"
+    micromatch "^3.1.8"
+    npm-which "^3.0.1"
+    p-map "^1.1.1"
+    path-is-inside "^1.0.2"
+    pify "^3.0.0"
+    please-upgrade-node "^3.0.2"
+    staged-git-files "1.1.1"
+    string-argv "^0.0.2"
+    stringify-object "^3.2.2"
+
+listr-silent-renderer@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/listr-silent-renderer/-/listr-silent-renderer-1.1.1.tgz#924b5a3757153770bf1a8e3fbf74b8bbf3f9242e"
+
+listr-update-renderer@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/listr-update-renderer/-/listr-update-renderer-0.4.0.tgz#344d980da2ca2e8b145ba305908f32ae3f4cc8a7"
+  dependencies:
+    chalk "^1.1.3"
+    cli-truncate "^0.2.1"
+    elegant-spinner "^1.0.1"
+    figures "^1.7.0"
+    indent-string "^3.0.0"
+    log-symbols "^1.0.2"
+    log-update "^1.0.2"
+    strip-ansi "^3.0.1"
+
+listr-verbose-renderer@^0.4.0:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/listr-verbose-renderer/-/listr-verbose-renderer-0.4.1.tgz#8206f4cf6d52ddc5827e5fd14989e0e965933a35"
+  dependencies:
+    chalk "^1.1.3"
+    cli-cursor "^1.0.2"
+    date-fns "^1.27.2"
+    figures "^1.7.0"
+
+listr@^0.14.1:
+  version "0.14.1"
+  resolved "https://registry.yarnpkg.com/listr/-/listr-0.14.1.tgz#8a7afa4a7135cee4c921d128e0b7dfc6e522d43d"
+  dependencies:
+    "@samverschueren/stream-to-observable" "^0.3.0"
+    cli-truncate "^0.2.1"
+    figures "^1.7.0"
+    indent-string "^2.1.0"
+    is-observable "^1.1.0"
+    is-promise "^2.1.0"
+    is-stream "^1.1.0"
+    listr-silent-renderer "^1.1.1"
+    listr-update-renderer "^0.4.0"
+    listr-verbose-renderer "^0.4.0"
+    log-symbols "^1.0.2"
+    log-update "^1.0.2"
+    ora "^0.2.3"
+    p-map "^1.1.1"
+    rxjs "^6.1.0"
+    strip-ansi "^3.0.1"
+
+lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
+  version "4.17.10"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
+
+log-symbols@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-1.0.2.tgz#376ff7b58ea3086a0f09facc74617eca501e1a18"
+  dependencies:
+    chalk "^1.0.0"
+
+log-symbols@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
+  dependencies:
+    chalk "^2.0.1"
+
+log-update@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/log-update/-/log-update-1.0.2.tgz#19929f64c4093d2d2e7075a1dad8af59c296b8d1"
+  dependencies:
+    ansi-escapes "^1.0.0"
+    cli-cursor "^1.0.2"
 
 lru-cache@^4.0.1:
-  version "4.1.2"
-  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.2.tgz#45234b2e6e2f2b33da125624c4664929a0224c3f"
+  version "4.1.3"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.3.tgz#a1175cf3496dfc8436c156c334b4955992bce69c"
   dependencies:
     pseudomap "^1.0.2"
     yallist "^2.1.2"
 
+map-cache@^0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
+
+map-visit@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/map-visit/-/map-visit-1.0.0.tgz#ecdca8f13144e660f1b5bd41f12f3479d98dfb8f"
+  dependencies:
+    object-visit "^1.0.0"
+
+micromatch@^3.1.8:
+  version "3.1.10"
+  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
+  dependencies:
+    arr-diff "^4.0.0"
+    array-unique "^0.3.2"
+    braces "^2.3.1"
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    extglob "^2.0.4"
+    fragment-cache "^0.2.1"
+    kind-of "^6.0.2"
+    nanomatch "^1.2.9"
+    object.pick "^1.3.0"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.2"
+
 mimic-fn@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
 
-minimatch@^3.0.2, minimatch@^3.0.4:
+minimatch@3.0.4, minimatch@^3.0.2, minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
   dependencies:
@@ -641,26 +1299,34 @@ minimist@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
 
+mixin-deep@^1.2.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.1.tgz#a49e7268dce1a0d9698e45326c5626df3543d0fe"
+  dependencies:
+    for-in "^1.0.2"
+    is-extendable "^1.0.1"
+
 mkdirp@0.5.1, mkdirp@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   dependencies:
     minimist "0.0.8"
 
-mocha@^5.0.5:
-  version "5.0.5"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.0.5.tgz#e228e3386b9387a4710007a641f127b00be44b52"
+mocha@^5.2.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.2.0.tgz#6d8ae508f59167f940f2b5b3c4a612ae50c90ae6"
   dependencies:
     browser-stdout "1.3.1"
-    commander "2.11.0"
+    commander "2.15.1"
     debug "3.1.0"
     diff "3.5.0"
     escape-string-regexp "1.0.5"
     glob "7.1.2"
-    growl "1.10.3"
+    growl "1.10.5"
     he "1.1.1"
+    minimatch "3.0.4"
     mkdirp "0.5.1"
-    supports-color "4.4.0"
+    supports-color "5.4.0"
 
 ms@2.0.0:
   version "2.0.0"
@@ -670,20 +1336,89 @@ mute-stream@0.0.7:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
+nanomatch@^1.2.9:
+  version "1.2.9"
+  resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.9.tgz#879f7150cb2dab7a471259066c104eee6e0fa7c2"
+  dependencies:
+    arr-diff "^4.0.0"
+    array-unique "^0.3.2"
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    fragment-cache "^0.2.1"
+    is-odd "^2.0.0"
+    is-windows "^1.0.2"
+    kind-of "^6.0.2"
+    object.pick "^1.3.0"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
 natural-compare@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
 
-object-assign@^4.0.1:
+normalize-path@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-1.0.0.tgz#32d0e472f91ff345701c15a8311018d3b0a90379"
+
+npm-path@^2.0.2:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/npm-path/-/npm-path-2.0.4.tgz#c641347a5ff9d6a09e4d9bce5580c4f505278e64"
+  dependencies:
+    which "^1.2.10"
+
+npm-run-path@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
+  dependencies:
+    path-key "^2.0.0"
+
+npm-which@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/npm-which/-/npm-which-3.0.1.tgz#9225f26ec3a285c209cae67c3b11a6b4ab7140aa"
+  dependencies:
+    commander "^2.9.0"
+    npm-path "^2.0.2"
+    which "^1.2.10"
+
+number-is-nan@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
+
+object-assign@^4.0.1, object-assign@^4.1.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
 
+object-copy@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/object-copy/-/object-copy-0.1.0.tgz#7e7d858b781bd7c991a41ba975ed3812754e998c"
+  dependencies:
+    copy-descriptor "^0.1.0"
+    define-property "^0.2.5"
+    kind-of "^3.0.3"
+
+object-visit@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/object-visit/-/object-visit-1.0.1.tgz#f79c4493af0c5377b59fe39d395e41042dd045bb"
+  dependencies:
+    isobject "^3.0.0"
+
+object.pick@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/object.pick/-/object.pick-1.3.0.tgz#87a10ac4c1694bd2e1cbf53591a66141fb5dd747"
+  dependencies:
+    isobject "^3.0.1"
+
 once@^1.3.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
   dependencies:
     wrappy "1"
 
+onetime@^1.0.0:
+  version "1.1.0"
+  resolved "http://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz#a1f7838f8314c516f05ecefcbc4ccfe04b4ed789"
+
 onetime@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/onetime/-/onetime-2.0.1.tgz#067428230fd67443b2794b22bba528b6867962d4"
@@ -701,10 +1436,38 @@ optionator@^0.8.2:
     type-check "~0.3.2"
     wordwrap "~1.0.0"
 
+ora@^0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/ora/-/ora-0.2.3.tgz#37527d220adcd53c39b73571d754156d5db657a4"
+  dependencies:
+    chalk "^1.1.1"
+    cli-cursor "^1.0.2"
+    cli-spinners "^0.1.2"
+    object-assign "^4.0.1"
+
 os-tmpdir@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
 
+p-finally@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
+
+p-map@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
+
+parse-json@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-4.0.0.tgz#be35f5425be1f7f6c747184f98a788cb99477ee0"
+  dependencies:
+    error-ex "^1.3.1"
+    json-parse-better-errors "^1.0.1"
+
+pascalcase@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/pascalcase/-/pascalcase-0.1.1.tgz#b363e55e8006ca6fe21784d2db22bd15d7917f14"
+
 path-is-absolute@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
@@ -713,6 +1476,10 @@ path-is-inside@^1.0.1, path-is-inside@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
 
+path-key@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
+
 pathval@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/pathval/-/pathval-1.1.0.tgz#b942e6d4bde653005ef6b71361def8727d0645e0"
@@ -721,6 +1488,10 @@ pify@^2.0.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
 
+pify@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pify/-/pify-3.0.0.tgz#e5a4acd2c101fdf3d9a4d07f0dbc4db49dd28176"
+
 pinkie-promise@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/pinkie-promise/-/pinkie-promise-2.0.1.tgz#2135d6dfa7a358c069ac9b178776288228450ffa"
@@ -731,10 +1502,20 @@ pinkie@^2.0.0:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
 
+please-upgrade-node@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/please-upgrade-node/-/please-upgrade-node-3.0.2.tgz#7b9eaeca35aa4a43d6ebdfd10616c042f9a83acc"
+  dependencies:
+    semver-compare "^1.0.0"
+
 pluralize@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
 
+posix-character-classes@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
+
 postcss@^4.1.16:
   version "4.1.16"
   resolved "https://registry.yarnpkg.com/postcss/-/postcss-4.1.16.tgz#4c449b4c8af9df3caf6d37f8e1e575d0361758dc"
@@ -743,18 +1524,29 @@ postcss@^4.1.16:
     js-base64 "~2.1.8"
     source-map "~0.4.2"
 
-postcss@^6.0.1:
-  version "6.0.21"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-6.0.21.tgz#8265662694eddf9e9a5960db6da33c39e4cd069d"
+postcss@^6.0.22:
+  version "6.0.22"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-6.0.22.tgz#e23b78314905c3b90cbd61702121e7a78848f2a3"
   dependencies:
-    chalk "^2.3.2"
+    chalk "^2.4.1"
     source-map "^0.6.1"
-    supports-color "^5.3.0"
+    supports-color "^5.4.0"
 
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
 
+prettier@^1.13.4:
+  version "1.13.4"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.13.4.tgz#31bbae6990f13b1093187c731766a14036fa72e6"
+
+pretty-format@^23.0.1:
+  version "23.0.1"
+  resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-23.0.1.tgz#d61d065268e4c759083bccbca27a01ad7c7601f4"
+  dependencies:
+    ansi-regex "^3.0.0"
+    ansi-styles "^3.2.0"
+
 process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
@@ -768,21 +1560,42 @@ pseudomap@^1.0.2:
   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
 
 readable-stream@^2.2.2:
-  version "2.3.5"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.5.tgz#b4f85003a938cbb6ecbce2a124fb1012bd1a838d"
+  version "2.3.6"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.3"
     isarray "~1.0.0"
     process-nextick-args "~2.0.0"
     safe-buffer "~5.1.1"
-    string_decoder "~1.0.3"
+    string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
+regex-not@^1.0.0, regex-not@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/regex-not/-/regex-not-1.0.2.tgz#1f4ece27e00b0b65e0247a6810e6a85d83a5752c"
+  dependencies:
+    extend-shallow "^3.0.2"
+    safe-regex "^1.1.0"
+
 regexpp@^1.0.1:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/regexpp/-/regexpp-1.1.0.tgz#0e3516dd0b7904f413d2d4193dce4618c3a689ab"
 
+repeat-element@^1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/repeat-element/-/repeat-element-1.1.2.tgz#ef089a178d1483baae4d93eb98b4f9e4e11d990a"
+
+repeat-string@^1.6.1:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-1.6.1.tgz#8dcae470e1c88abc2d600fff4a776286da75e637"
+
+repeating@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/repeating/-/repeating-2.0.1.tgz#5214c53a926d3552707527fbab415dbc08d06dda"
+  dependencies:
+    is-finite "^1.0.0"
+
 require-uncached@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
@@ -794,6 +1607,17 @@ resolve-from@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
 
+resolve-url@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
+
+restore-cursor@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-1.0.1.tgz#34661f46886327fed2991479152252df92daa541"
+  dependencies:
+    exit-hook "^1.0.0"
+    onetime "^1.0.0"
+
 restore-cursor@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
@@ -801,6 +1625,10 @@ restore-cursor@^2.0.0:
     onetime "^2.0.0"
     signal-exit "^3.0.2"
 
+ret@~0.1.10:
+  version "0.1.15"
+  resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
+
 rimraf@^2.2.8:
   version "2.6.2"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
@@ -823,14 +1651,52 @@ rx-lite@*, rx-lite@^4.0.8:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-4.0.8.tgz#0b1e11af8bc44836f04a6407e92da42467b79444"
 
+rxjs@^6.1.0:
+  version "6.2.0"
+  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.2.0.tgz#e024d0e180b72756a83c2aaea8f25423751ba978"
+  dependencies:
+    tslib "^1.9.0"
+
 safe-buffer@~5.1.0, safe-buffer@~5.1.1:
-  version "5.1.1"
-  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
+
+safe-regex@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"
+  dependencies:
+    ret "~0.1.10"
+
+"safer-buffer@>= 2.1.2 < 3":
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
+
+semver-compare@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/semver-compare/-/semver-compare-1.0.0.tgz#0dee216a1c941ab37e9efb1788f6afc5ff5537fc"
 
 semver@^5.3.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
 
+set-value@^0.4.3:
+  version "0.4.3"
+  resolved "https://registry.yarnpkg.com/set-value/-/set-value-0.4.3.tgz#7db08f9d3d22dc7f78e53af3c3bf4666ecdfccf1"
+  dependencies:
+    extend-shallow "^2.0.1"
+    is-extendable "^0.1.1"
+    is-plain-object "^2.0.1"
+    to-object-path "^0.3.0"
+
+set-value@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/set-value/-/set-value-2.0.0.tgz#71ae4a88f0feefbbf52d1ea604f3fb315ebb6274"
+  dependencies:
+    extend-shallow "^2.0.1"
+    is-extendable "^0.1.1"
+    is-plain-object "^2.0.3"
+    split-string "^3.0.1"
+
 shebang-command@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
@@ -841,16 +1707,65 @@ shebang-regex@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
 
-signal-exit@^3.0.2:
+signal-exit@^3.0.0, signal-exit@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
 
+slice-ansi@0.0.4:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-0.0.4.tgz#edbf8903f66f7ce2f8eafd6ceed65e264c831b35"
+
 slice-ansi@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-1.0.0.tgz#044f1a49d8842ff307aad6b505ed178bd950134d"
   dependencies:
     is-fullwidth-code-point "^2.0.0"
 
+snapdragon-node@^2.0.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/snapdragon-node/-/snapdragon-node-2.1.1.tgz#6c175f86ff14bdb0724563e8f3c1b021a286853b"
+  dependencies:
+    define-property "^1.0.0"
+    isobject "^3.0.0"
+    snapdragon-util "^3.0.1"
+
+snapdragon-util@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/snapdragon-util/-/snapdragon-util-3.0.1.tgz#f956479486f2acd79700693f6f7b805e45ab56e2"
+  dependencies:
+    kind-of "^3.2.0"
+
+snapdragon@^0.8.1:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/snapdragon/-/snapdragon-0.8.2.tgz#64922e7c565b0e14204ba1aa7d6964278d25182d"
+  dependencies:
+    base "^0.11.1"
+    debug "^2.2.0"
+    define-property "^0.2.5"
+    extend-shallow "^2.0.1"
+    map-cache "^0.2.2"
+    source-map "^0.5.6"
+    source-map-resolve "^0.5.0"
+    use "^3.1.0"
+
+source-map-resolve@^0.5.0:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.2.tgz#72e2cc34095543e43b2c62b2c4c10d4a9054f259"
+  dependencies:
+    atob "^2.1.1"
+    decode-uri-component "^0.2.0"
+    resolve-url "^0.2.1"
+    source-map-url "^0.4.0"
+    urix "^0.1.0"
+
+source-map-url@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
+
+source-map@^0.5.6:
+  version "0.5.7"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
+
 source-map@^0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
@@ -861,10 +1776,39 @@ source-map@~0.4.2:
   dependencies:
     amdefine ">=0.0.4"
 
+split-string@^3.0.1, split-string@^3.0.2:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/split-string/-/split-string-3.1.0.tgz#7cb09dda3a86585705c64b39a6466038682e8fe2"
+  dependencies:
+    extend-shallow "^3.0.0"
+
 sprintf-js@~1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
 
+staged-git-files@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/staged-git-files/-/staged-git-files-1.1.1.tgz#37c2218ef0d6d26178b1310719309a16a59f8f7b"
+
+static-extend@^0.1.1:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/static-extend/-/static-extend-0.1.2.tgz#60809c39cbff55337226fd5e0b520f341f1fb5c6"
+  dependencies:
+    define-property "^0.2.5"
+    object-copy "^0.1.0"
+
+string-argv@^0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/string-argv/-/string-argv-0.0.2.tgz#dac30408690c21f3c3630a3ff3a05877bdcbd736"
+
+string-width@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
+  dependencies:
+    code-point-at "^1.0.0"
+    is-fullwidth-code-point "^1.0.0"
+    strip-ansi "^3.0.0"
+
 string-width@^2.1.0, string-width@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
@@ -872,13 +1816,21 @@ string-width@^2.1.0, string-width@^2.1.1:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^4.0.0"
 
-string_decoder@~1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.0.3.tgz#0fc67d7c141825de94282dd536bec6b9bce860ab"
+string_decoder@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
   dependencies:
     safe-buffer "~5.1.0"
 
-strip-ansi@^3.0.0:
+stringify-object@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/stringify-object/-/stringify-object-3.2.2.tgz#9853052e5a88fb605a44cd27445aa257ad7ffbcd"
+  dependencies:
+    get-own-enumerable-property-symbols "^2.0.1"
+    is-obj "^1.0.1"
+    is-regexp "^1.0.0"
+
+strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
   dependencies:
@@ -890,25 +1842,31 @@ strip-ansi@^4.0.0:
   dependencies:
     ansi-regex "^3.0.0"
 
+strip-eof@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
+
+strip-indent@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/strip-indent/-/strip-indent-2.0.0.tgz#5ef8db295d01e6ed6cbf7aab96998d7822527b68"
+
 strip-json-comments@~2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
 
-supports-color@4.4.0:
-  version "4.4.0"
-  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-4.4.0.tgz#883f7ddabc165142b2a61427f3352ded195d1a3e"
+supports-color@5.4.0, supports-color@^5.3.0, supports-color@^5.4.0:
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.4.0.tgz#1c6b337402c2137605efe19f10fec390f6faab54"
   dependencies:
-    has-flag "^2.0.0"
+    has-flag "^3.0.0"
 
 supports-color@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
 
-supports-color@^5.3.0:
-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.3.0.tgz#5b24ac15db80fa927cf5227a4a33fd3c4c7676c0"
-  dependencies:
-    has-flag "^3.0.0"
+symbol-observable@^1.1.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.2.0.tgz#c22688aed4eab3cdc2dfeacbb561660560a00804"
 
 table@4.0.2:
   version "4.0.2"
@@ -935,6 +1893,32 @@ tmp@^0.0.33:
   dependencies:
     os-tmpdir "~1.0.2"
 
+to-object-path@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/to-object-path/-/to-object-path-0.3.0.tgz#297588b7b0e7e0ac08e04e672f85c1f4999e17af"
+  dependencies:
+    kind-of "^3.0.2"
+
+to-regex-range@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/to-regex-range/-/to-regex-range-2.1.1.tgz#7c80c17b9dfebe599e27367e0d4dd5590141db38"
+  dependencies:
+    is-number "^3.0.0"
+    repeat-string "^1.6.1"
+
+to-regex@^3.0.1, to-regex@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/to-regex/-/to-regex-3.0.2.tgz#13cfdd9b336552f30b51f33a8ae1b42a7a7599ce"
+  dependencies:
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    regex-not "^1.0.2"
+    safe-regex "^1.1.0"
+
+tslib@^1.9.0:
+  version "1.9.2"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.2.tgz#8be0cc9a1f6dc7727c38deb16c2ebd1a2892988e"
+
 type-check@~0.3.2:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.3.2.tgz#5884cab512cf1d355e3fb784f30804b2b520db72"
@@ -949,13 +1933,39 @@ typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
+union-value@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/union-value/-/union-value-1.0.0.tgz#5c71c34cb5bad5dcebe3ea0cd08207ba5aa1aea4"
+  dependencies:
+    arr-union "^3.1.0"
+    get-value "^2.0.6"
+    is-extendable "^0.1.1"
+    set-value "^0.4.3"
+
+unset-value@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"
+  dependencies:
+    has-value "^0.3.1"
+    isobject "^3.0.0"
+
+urix@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
+
+use@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/use/-/use-3.1.0.tgz#14716bf03fdfefd03040aef58d8b4b85f3a7c544"
+  dependencies:
+    kind-of "^6.0.2"
+
 util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
 
-which@^1.2.9:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/which/-/which-1.3.0.tgz#ff04bdfc010ee547d780bec38e1ac1c2777d253a"
+which@^1.2.10, which@^1.2.9:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
   dependencies:
     isexe "^2.0.0"