wrap regions (child), Camera panning

new script for wrap regions. These work the way I had envisioned...going
into the parent moves everything to the child. This is Garrets code, but
a single word is altered and it changes everything.

Two objects are required for level panning: a LevelCenter and a
LevelBottom. These are placed at 0,0,0 and 0,-20,0. Game still works
without these, but will crash when all enemies are killed