Add a shell of a Player class.
Add an instance of Cannon to main.
Add return type to Target.draw().
Add controls.
started draw cannon method.

Having issues with getting the cannon to pivot.
Added player class
Merge pull request #21 from TurtleTheater/player_class

Player class
Reformat Player class.
Remove instructional comments.
Fixed Cannon rotation
Added fire method
Fixed 'ssssssssssssss' error.
Merge branch 'master' into cannon_methods

Conflicts:
	cannonball.pde
Fixed typos.
Fix typos.
Set the ball to the fired ball.
Reformat controls.
Make cannon movement faster.
Fix ball fire start position.
Add variables for height and width of cannon.