* Fix for iOS8 category parameter (Andrej Šinigoj)

 * Support ios notification app on iOS8 version (xcode 6) (Vine Brancho)

 * Fix a build error from xcode (Vine Brancho)

 * Update README.md (Rand McKinney)

 * Typo (Rand McKinney)

 * Added keywords (Rand McKinney)

 * Fix bad CLA URL in CONTRIBUTING.md (Ryan Graham)

 * Cleanup CHANGES.md (ariskemper)

 * Fix to GCM provider "devicesGone" test (Andrej Šinigoj)

 * Update gcm.js (Andrej Šinigoj)