Apple Sign In support

• Add support for Apple sign in
• Update Android dependencies
• Update web dependencies

Workaround for iOS glitch

• Disable Google auth for earlier than iOS 11 - seems to be an issue with FirebaseUI

Add getCurrentUser()

• Add getCurrentUser()
• Fix callback bug on iOS if login failed

Update dependencies

• Update Firebase dependencies
• Fix podspec for cordova-ios 5

Anonymous breaking change

• Major Android dependency update to 4.2.1
• Breaking change around meaning of 'anonymous' configuration option
• Add support for ANONYMOUS provider (on Android)
• Attempted to handle merging of anonymous users
• Allowed iOS pods to use latest
• Android logo disabled due to possible bug in FirebaseUI

Update dependencies

Update Firebase dependencies

Enhance email support

• Added missing documentation for deleteUser() method
• Added sendEmailVerification() method
• Added reloadUser() method
• Added property newUser to user details. Only true when user us first created.

Updated Firebase dependencies

• Update Android dependency versions
• Update iOS dependency versions
• Update plugin dependencies

Bug fix

• Fix cordova-android 7 detection

Minor fix

Adjust logging