Updated to Cordova 2.7, fixed a number of bugs. Cleaned up some code.

* Put all the plugin code in the plugin namespace: com.plugin.gcm;
* Renamed to namespace GCM to gcm, namespaces should be lower case
according to the java style guidelines;
* Deleted the google gcm code and added gcm.jar instead;
* Added CordovaGCMBroadcastReceiver.java to enable GCMIntentService to
be namespaced in the plugin namespace instead of the client project
(which is is the default with google's GCMIntentService);
* Moved all java <--> javascript interop to PushPlugin;
* Moved all notification code to GCMIntentService (maybe this fits
better in its own class);
* Changed the way the plugin detects cold starts in order for it not to
crash when the back button is used to navigate out of the app;
* Changed the caching on the filesystem to a memory cache on a static
variable, which increases performance and simplifies code;
* Cut up some code into separate methods ;
* Added code comments;
* Updated the readme file.
moved libs/gcm.jar to src/android/libs/gcm.jar for plugman compatibility
Remove config file from spec for plugman compatibility
Accept either Boolean or string argiuments to register method for iOS
Merge pull request #5 from NetMatch/master

Updated to Cordova 2.7, fixed a number of bugs. Cleaned up some code.
Update documentation for pluginstall
error callback for setApplicationIconBadgeNumber
Merge pull request #11 from Michael-vb/master

Fix for setApplicationIconBadgeNumber
surface payload when app is launched from incoming notification on iOS
Bump version
[plugman] renaming GCM/ to gcm/ to make plugman work
[1.3.2] upped version
Add description tag
[plugin.xml] add license tag