Updated auth screen (work-in-progress)
Merge branch 'develop' into new-ios-auth
Merge branch 'develop' into new-ios-auth
Updated new iOS authentication screen to work better on iPads and smaller screen iPhones
Standardized code style
Cleaned up SPLoginButton
Changes to make the new iOS auth screen look correct on pre-iOS 7 devices
Merge branch 'develop' into new-ios-auth
Merge branch 'develop' into new-ios-auth
Changed default view for authentication screen to sign up
Generalize authentication config for iOS and OSX
Renamed loginViewController to authenticationViewController, plus code cleanup
Renamed login button class and added QuartzCore dependency
Rename SPAuthenticationManager and SPAuthenticationDelegate to SPAuthenticator and SPAuthenticatorDelegate
Code format consistency pass
Better variable names for authenticator instances
Removed custom font dependency and made it configurable
Generalized validation, plus code cleanup/consistency
Exposed SPAuthenticationConfiguration to iOS