start game on window load rather than document ready, so we're sure the images have loaded. fixes #7
fix pause feature, fixes #10
only prevent default keypress handling for keys we actually use, fixes #14
Merge pull request #12 from benmj/bugfix/7

start game on window load rather than document ready
Merge pull request #13 from benmj/bugfix/10

fix pause feature, fixes #10
Merge pull request #15 from benmj/bugfix/14

only prevent default keypress handling for keys we actually use