--------------- EXPECTED PROGRESS ---------------

* Add particle emitter members to game objects.

---------------  ACTUAL PROGRESS  ---------------
	
* Added ship thrust particle emitter to ship class.
  Still needs work.

* Updated ship demo to reflect class interface changes made in
  game code.  Used ship demo to implement thrust particle
  emitter for ship.

* Fixed bug in emit direction calculations.  Needed to 
  convert degrees to radians.
		
---------------       SNAGS       ---------------

* May have discovered unexpected behavior in spawn direction calculations.

---------------       PLANS       ---------------

* Implement derived emitters for smoke, fire, etc...