Update image raw src

Update image src to site [ http://raw.githubusercontent.com ]

And it is available to make npm page to show the right image.

Catch previously-valid notification non-int keys.

Fix compatibility w/ other plugins due to android-support-v4.jar

Changing android-support dependency declaration to be compatible with other plugins like phonegap-plugin-push and cordova-plugin-facebook4. Issue katzer/cordova-plugin-local-notifications#632

Updating id of android v4 support lib to latest