Correct some key actions

  * events are not prevented unless space or cmd
  * command no longer causes incorrect count to increment
    because users may cmd + tab
  * arrow keys also don't increment incorrect count
Correct the keys that do different things

  * right arrow key was same code as apostrophe
  * so now only up and down don't hurt your score
Merge pull request #11 from mknudsen01/get-other-keys-working

Get other keys working