New Tap implementation to support single/double/TripleTap scenario
- move requireFailure logic
- tap setup BEGAN state
- tap setup FAILED state if a expected event is not received
Merging changes
Add recognizer.tryEmit method
- check required recognizer failures before emitting a gesture event
Uses tryEmit on press and rename test-multiple-taps
Add failing test requireFailure (Swipe&Press)
Merging 2.0.x branch
Uncomment missing tests index.html
Add failing Swipe Gesture test
Merge pull request #575 from ppcano/fix-tap-delay

[2.0.x] Changes on tap & Press to support requireFailure scenario