1.5 Updated to latest GCM API on Server & Client
1.4 Fixed a crash that happened on some 2.2 and 2.3 devices
1.3 Made the Test-Notification compatible with several automation Apps (e.g. Tasker)
1.2 Security update
1.1 Updated Server and App to use GCM (Google Cloud Messaging for Android) instead of the deprecated C2DM (Android Cloud to Device Messaging)
1.0 Initial Release