added some cannon rotation. merging with patricks changes
merging with davids changes and more functionality with rotation of cannon
Merge branch 'master' of https://github.com/dbkegley/AngryBernsteins

Conflicts:
	AngryBernsteins.jar
	build/AngryBernsteinsApp.class
	build/Projectile.class
	src/Projectile.java