Launch patch, v1.0.2

Thank you to everyone who provided feedback, both here and in the tfgames.site forums! Here's a quick update to fix some of the issues pointed out.

Bugs fixed:

• Gems got stuck if you maxed out a column
• Instanced stereo disabled (was causing an error)
• Removed a debugger key I'd forgotten about (whoops!)
• Fixed a bug where the screen turns black if you get too close to the walls.
• Added collision to the sand pile to prevent leaving the room
• Added collision boundaries to the epilogue level so the player can't fall out the world