aerogear-push-ios-demo app does not have a code to clear app icon badge. as "badge" is part of push, demo app should show how to handle it (just like it shows how the handle the alert message).

Proposed solution -->
add

[UIApplication sharedApplication].applicationIconBadgeNumber = 0;

to

https://github.com/aerogear/aerogear-push-ios-demo/blob/master/PushTest/AGAppDelegate.m#L40