add ubuntu platform
CB-5188:
Added amazon-fireos platform.
Change to include amazon-fireos as a platform if the user agent string contains 'cordova-amazon-fireos'
CB-4747 Fixed Blackberry background vibrate

Updated the Blackberry vibrate plug-in with a new native plug-in which allows for vibrating in the background.
Merge branch 'dev' of github.com:archananaik/cordova-plugin-vibration into dev
added ubuntu support
[CB-5565] Updated version and RELEASENOTES.md for release 0.3.5