* Don't check if we are in the foreground - that happens anyway in the
sendExtras() method (https://github.com/phonegap-build/PushPlugin/blob/master/src/android/com/plugin/gcm/PushPlugin.java#L111)
* Only display a message if the message has text to be displayed

Fixes #52 and undoes #3

Use & instead of your large and error prone if statements

Fix typo: successCallback should be errorCallback

Finalize pre-3.0.0 plugin fixes

plugin submission requires a version bump even if plugin was previously
deleted (bug?)

Fix setApplicationIconBadgeNumber returning errors.

The signature of all the methods callable from JavaScript had to change
from:
-- (void)register:(NSMutableArray *)arguments
withDict:(NSMutableDictionary *)options;
to
+- (void)register:(CDVInvokedUrlCommand*)command;

The old format was officially obsoleted in in Cordova 3.0, so there is
no way around using the old one.

'arguments' and 'options' needed to use the new 'command' object.

With this new format the plugin result interface was also broken, so it
was changed to the new documented format.

This code is _not_ well tested at this point, but I wanted to get it up
for anyone having issues migrating to 3.0.

Fix for setApplicationIconBadgeNumber

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.

cordova-plugman support