CB-5980 Incremented plugin version on dev branch.
Add NOTICE file
CB-6212 iOS: fix warnings compiled under arm64 64-bit
CB-6411 [BlackBerry10] Updates to beep

- Update to embedded wav file to prevent long fade out
- Fix issues when quantity is not a number
- Fix issues when beep called while previous beep still playing
CB-6411 [BlackBerry10] Work around Audio playback issue
CB-6422 [windows8] use cordova/exec/proxy
CB-6460: Update license headers
CB-6452 Updated version and RELEASENOTES.md for release 0.2.7
CB-6452 Incremented plugin version on dev branch.
Removing FirefoxOS Quirks
* no need to add special permission (it's different API with the same name)
* notification.css is added automatically
CB-4966
Dialogs are in window now
No need to add anything to manifest or index.html
Added check for isFinishing() on the parent activity
to prevent crashes when trying to display dialogs when activity
is in this phase of it's lifecycle
CB-6491 add CONTRIBUTING.md