CB-5980 Incremented plugin version on dev branch.
Add NOTICE file
CB-5977: Removing the Android Geolocation Code.  Mission Accomplished.
CB-6212 iOS: fix warnings compiled under arm64 64-bit
CB-6422 [windows8] use cordova/exec/proxy
CB-6460: Update license headers
CB-6452 Updated version and RELEASENOTES.md for release 0.3.7
CB-6452 Incremented plugin version on dev branch.
CB-6491 add CONTRIBUTING.md