Popups for success and failure

Adds trigger actions for displaying popups on success and failure, and corresponding messages specific to the situation. How does it look? @kadst43 @BrettASwift 
moveFailed seems like the wrong thing to attach your callback to - you want a callback any time that the battery level changes.

In any case... I wouldn't add this clause at all.  If you really want to check the battery level, you'll want something much more flexible - but in this case, all you want to know is why you failed.  You can create a moveFailedBattery and a moveFailedCollision clause, and each can check the parameter to the moveFailed event's function to see which one pertains.  I can help you with that if needed.