heads up display
tracking kill, lives, energy
zombie ai
Merge branch 'master' of github.com:manimaul/8bit-zombie-arcade into hud_and_interactions

Conflicts:
	8bit-zombie-arcade.xcodeproj/project.pbxproj
	8bit-zombie-arcade/Resources/bullet.sks
	8bit-zombie-arcade/ZAHeroSpriteNode.m
	8bit-zombie-arcade/ZAMyScene.m
Merge pull request #15 from manimaul/hud_and_interactions

Hud and interactions... merged