Added full support for 4.0-inch screens

Also added in this commit:
• Some new extensions to UIDevice so I can do stuff cleaner, like
• Vibration for pre-6s devices when switches, scale or vault pressed
• Counters for cubes placed in the switches, the scale, and the home
alliance's vault.

scouting1072/AppDelegate.swift

@@ -12,11 +12,17 @@ import GoogleSignIn
 
 extension Notification.Name {
     static let userSignedIn = Notification.Name("userSignedIn")
+    static let newCubeHome = Notification.Name("newCubeHome")
+    static let newCubeScale = Notification.Name("newCubeScale")
+    static let newCubeAway = Notification.Name("newCubeAway")
+    static let newCubeVault = Notification.Name("newCubeVault")
 }
 
 var user : GIDGoogleUser? {
     didSet {
-        NotificationCenter.default.post(Notification(name: .userSignedIn))
+        if user != nil {
+            NotificationCenter.default.post(Notification(name: .userSignedIn))
+        }
     }
 }