Wrapping Code Fixed (Instructions in comment)

The original wrapping code now works for up and down as well as left and
right. To use the wrapping logic follow these instructions:
1) place a sprite at the origin and at the destination
2) give the origin sprite the py_regionWrapping component
3) set the target to the desination sprite
3) set the exit direction (based on destination)
4) enjoy

If you want a sprite to be a destination but not a portal itself, don't
give it the wrapping script.
Also, if you need an example of how it works, look check out my level.