Fixes issues with the handheld games.

http://smf.cataclysmdda.com/index.php?topic=5573.0 bug_sniper reported some issues.

I fixed a few of them.
There is now a cancel menu option (escape still doesn't work).

Find the kitten can be exited by using Q, q or escape now. (Game still has issues with num pad keys, and the keys do not respond to rebinding).
It now also correctly displays the incorrect key message. (The screen wasn't updated correctly).