QNimate folder is the Intel XDK Project. Use Use Existing Project to import the QNimate Project. Then build the app and install the .apk file.
No need to setup server or keys. I have done everything. Once installed click on Test Push Notification button to receive a notfication. You will receive the notification after 5 seconds.
If you want to see how my server script looks then check in server/android.php file.
Complete tutorial on this available at http://qnimate.com/push-notification-in-intel-xdk-using-push-plugin/