Added simple score keeping mechanism.
Added GUI display of score.
Merge pull request #2 from krytaxion/master

Added score board
Changed Fire1 from left ctrl to space
Merge pull request #3 from SimoHayhaM40/master

Changed Fire1 from left ctrl to space
Added simple enemy
Merge pull request #5 from krytaxion/master

Added simple enemy
Merge pull request #4 from jcs224/master

Some new sounds
Added laser shot sound to Player