Carthage Support and Update

[QuynhNguyen]

For those that needs Carthage support and update, you can use my repo as this hasn't received any love for almost 3 years now.

SARate

What's new:

• Carthage support
• Deprecate UIAlertView in favor of UIAlertController
• Ability to disable email message when negative feedback is given. This is important as lots of users don't use default mail client
• Dismiss alert if the user tapped on "Rate It Now"
• New star images and @3x support