xmlify

• use node v12 and up
• use the first item in operation.consume and produce as the default content-type and response-type respectively

0.1.7 chromatic-adornment

• add support for application/xml response type with formatted response body
• use the global consumes/produces definition if an operation doesn't specify its own
• use ng-bind-html for descriptions to support html syntax, this requires ngSanitize module
• add support for $ref definition on operation parameters
• use bootstrap less only, to remove dependency from bootstrap js and jquery