Merge pull request #34 from dgalaktionov/master

Synchronized player's attack with blade swings.
Merge pull request #35 from dgalaktionov/master

This shit wasn't working.
Added random moving behavior for enemy when player is not in range.
Added enemy sprites: Newton, Mr. H, nazists and wolves. I think it's
enough for levels 2 and 3.
Made levels 2 and 3 with dumb, pacifist enemies.