CB-5980 Incremented plugin version on dev branch.
Add NOTICE file
CB-6422 [windows8] use cordova/exec/proxy
Merge branch 'dev' of https://git-wip-us.apache.org/repos/asf/cordova-plugin-device-motion into dev
CB-6460: Update license headers
CB-6465: Add license headers to Tizen code
CB-6452 Updated version and RELEASENOTES.md for release 0.2.7
CB-6452 Incremented plugin version on dev branch.
FFOS added to supported platforms
CB-6491 add CONTRIBUTING.md