* Catch SQLiteExceptions (https://github.com/amplitude/Amplitude-Android/issues/6, https://github.com/amplitude/Amplitude-Android/issues/4, https://github.com/amplitude/Amplitude-Android/issues/7)
* Catch exceptions through by Apache HTTPClient (https://github.com/amplitude/Amplitude-Android/issues/3, https://github.com/amplitude/Amplitude-Android/issues/8)
Add VERSION to Constants
Move some constants to DatabaseHelper, remove permission constants, fix bug where first event was getting skipped from upload