Split into two separate scripts.

The cursor script does not work, at least on Chrome 34 Linux.  It used to work
fine in 2012 on Firefox, but now we have three problems:
1. I can't click on anything in the Flash player.
2. The cursor blinks horribly.
3. The hotspot is off.

The shim and wmode setting were necessary on Firefox, but they don't seem to
do a thing on Chrome.
add README
add LICENSE