Update 0.16

Update 0.16 is here!  In this update, I removed these bugs:

• When you go back to a checkpoint, all robots that were in a checkpoint are now able to move.
• Blocks that have been added back into the world can now be removed again.
• The blue block at the end now goes back to the checkpoint.
• The camera follows the robots even when the camera is not locked.

Admittedly, there are no added features in this update.  However, I am working on buttons, which are critical in making the game work.  Yes, this update was crap.

-Red