Build settings, rover art implemented, clean-up

-Included the new build settings
-pushable blocks combined with arrows and stones shouldn't kill the
player anymore, making level 3 easier
- implemented the rover art (tell me if it starts facing the wrong
direction)
-cleaned up the code, got rid of all warnings, and updated script
locations in folders.
-Rover now stays underneath UI when going out of bounds
- Updated the drapDrop sound so it always works.