Native TextField events numDeleted and newCharacters fail on Android

[ghost]

example.zip

The events numDeleted and newCharacters do not behave as described in the docs on Android (4.3). Please see the attached demo project for a working example. When run, you can see that

• newCharacters returns ALL characters, not just the newly typed.
• numDeleted returns string length -1 every time a new character is entered (i.e. not deleted)

When run on iOS, all works acording to the docs.

To reproduce, just run the attached project, enter characters one by one in the text field and watch the output in the console window.

[jaimealemany]

I just posted a very related bug here #192