Allow keyboard 'return' key to dismiss keyboard on BTUICardPostalCodeField, disable autocorrection for postal code
Add event reporting to BTPayPalViewController
Refine return key type and auto-capitalization
Fix backspace form field retreat bug for iOS 8

* Add UI tests
* Clean up UI demo app Storyboards
* Add accessibility labels to form fields to aid KIF testing
Merge pull request #70 from braintree/bugfix/ios8textfield

BTUICardForm text field enhancements
Remove en_UK

Fix https://github.com/braintree/braintree_ios/issues/71
Merge remote-tracking branch 'public/master'
Merge branch 'master' of github.com:braintree/braintree_ios
Merge branch 'master' of github.com:braintree/braintree_ios