added updateRotation to IDynamicMethods;
added rotation to projectiles;
uncovered issues with collision with multiple static objects on board:
	"display object must be a child of the called upon dis container"
		occurs when ships/projectiles hit first planet
		planet2 has no collision

uncovered another potential issue:
	when using the addDynamic() function, a necessary input is the
	gameBoard for the object to be put in.  However, within the
	function, the code simply states, "addChild(tempSprite)."
	If we call upon the function in another class, say DynamicObject(),
	perhaps we are another "gameBoard" instance.  Not sure.  Something
	is up though.