Fixed delete on android text fields
Text boxes delete characters in reaction to the backspace key down event, not the char event. On Android, the key down event was not being passed to the form. This is why only backspace wasn't working.
Merge branch 'next' of https://github.com/blackberry/GamePlay into next
Merge pull request #1434 from dgough/next

 Fixed delete on android text fields
Merge pull request #1436 from blackberry/next

Next
Merge pull request #3 from blackberry/master

Sync with Original GamePlay3D