MRS. ShooDemUp!

In the interest of making the game a bit more player-friendly at this point, I've added a Pause function. While I was at it, I did a bit to expand the game's timer management, too, which may be helpful in the future.

Press escape to turn down the volume and freeze everything. Press it again to unfreeze everything.

Bonus points for gamer street-cred if you know why I titled this update "Mrs. Shoodemup".