Enemy and Game Loop Bug Fixes

Fixed a bug that was causing zombini to take damage even after enemies
died.

Fixed bug that was causing wave number to increase once every second
instead of once every 30 seconds
Merge branch 'master' of https://github.com/samuraichikx/ZombieGameCS113

Conflicts:
	ZombieGame/Assets/Animation/Controllers/JetPack.controller.meta
	ZombieGame/Assets/Animation/Controllers/JetPack_Float.anim.meta
	ZombieGame/Assets/Scripts/InventoryChronoStopScript.cs.meta
	ZombieGame/Assets/Scripts/InventoryOverpowerScript.cs.meta
	ZombieGame/Assets/Scripts/InventoryRepulsorScript.cs.meta
	ZombieGame/Assets/Scripts/MedKitScript.cs.meta
	ZombieGame/Assets/Scripts/OverpowerScript.cs.meta
	ZombieGame/Assets/Scripts/RepulsorScript.cs.meta
	ZombieGame/Library/ScriptAssemblies/Assembly-CSharp.dll
	ZombieGame/Library/ScriptAssemblies/Assembly-CSharp.dll.mdb
	ZombieGame/Library/assetDatabase3
	ZombieGame/Library/guidmapper
	ZombieGame/Library/metadata/17/177440d387be5df4a9c83b2f1dd0dbc2
	ZombieGame/Library/metadata/1f/1f11c477f4f705c46be3743d19c63078
	ZombieGame/Library/metadata/26/26e94ad15a7f84d28b2a95df58fc4526
	ZombieGame/Library/metadata/2a/2a1ff7ff4ce484f1aad8887efed74b11
	ZombieGame/Library/metadata/42/429119d6e3faa9e4ca351369874e2a10
	ZombieGame/Library/metadata/5b/5ba5bd939d50a614abf65597eb7ac637
	ZombieGame/Library/metadata/6a/6a6a7374adc7e493c928252c8d3f2cef
	ZombieGame/Library/metadata/76/760b42242de2f8b49978829c33132555
	ZombieGame/Library/metadata/9e/9e89203a1de1fa34683162c7f2ff9e32
	ZombieGame/Library/metadata/b6/b6433fe7294998547ad14948fb421f7a
	ZombieGame/Library/metadata/b8/b86d4fd286c24408ca747e47b4294b9a
	ZombieGame/Library/metadata/c4/c492538d4e0c7674cba1ad251733c707
	ZombieGame/Library/metadata/d2/d237c51f3512f4aa39bf3fb92740aead
	ZombieGame/Library/metadata/d4/d4a44d763697f3a48b04ebade9134f87
	ZombieGame/Library/metadata/ea/ea90acb105d0d264bae4f4210d7bd4d8
	ZombieGame/Library/metadata/fd/fd5c4c9fa6df742ed89b80a340c7768e
	ZombieGame/Temp/__EditModeScene
	ZombieGame/ZombieGame-csharp.sln
	ZombieGame/ZombieGame.sln