Simple Javascript Shooter

Shoot the squares. 

You really only want to play this game on a cell phone in landscape.  Make sure you can rotate your phone (typically that means turn auto-rotate on).

This project tests multi-touch controls on cell phones so we can observe how the controls work under different conditions.  The code should allow this game to operate in a lot of different screen resolutions and screen orientations.

Fixed some things per recommendations.  And I make the controls relative so that the game operation (speed of player and enemies) is independent of screen resolution.