Added compile script.
Added main menu and game state.
Assert error in spriteHandler and/or sourcery regarding state switch and entity list.
Assert error at game state update.
Merge branch 'master' of https://github.com/Rolades/zombieGame; https://www.github.com/drif7walk/zombieGame

Conflicts:
	main.cpp
	sdl.hpp
	tile.h
	zombiespawner.h
Merge https://www.github.com/drif7walk/zombieGame