Animation

Moved rendering of enemies to super class, implemented animation. May
later make AnimationState a private enum.
Merge branch 'feature-animate' into develop
Enemy bullets

Enemies capable of shooting bullets. Right now, they just shoot based
on a low probability. Bullets to not destroy fighter.
AppConstants comments
Fighter destruction

Fighter can now be destroyed by enemy bullets. At this time, the game
loop halts.
Merge branch 'feature-enemybullets' into develop
Bullet comments
Merge branch 'feature-enemybullets' into develop
Sprites

Created new sprites for explosions
Updated AnimationState enum with more advanced functionality
Explosions

Enemies and the fighter now explode when destroyed
Tweaks
Merge branch 'feature-explosion' into develop
Merge branch 'feature-explosion' into develop

Conflicts:
	bin/Galaga/Fighter.class
	bin/Galaga/Galaga.class
	src/Galaga/Fighter.java
	src/Galaga/Galaga.java
I may have fucked up
I think I definitely fucked up
Maybe this will fix it
Merge pull request #4 from cdglasz/develop

Version 0.1