added RELEASENOTES.md
added RELEASENOTES.md

cordova-ubuntu/cordova-ubuntu,Zaspire/cordova-ubuntu,Zaspire/cordova-ubuntu,cordova-ubuntu/cordova-ubuntu,Zaspire/cordova-ubuntu,apache/cordova-ubuntu,Zaspire/cordova-ubuntu,apache/cordova-ubuntu,cordova-ubuntu/cordova-ubuntu,apache/cordova-ubuntu,apache/cordova-ubuntu,cordova-ubuntu/cordova-ubuntu