added base class for scenarios, reset works, clean up alone doesn't.
relocate gamescenario to scenarios
coding style
comments fixed
Merge branch 'master' of https://github.com/voxelinc/voxellancer into scenario

Conflicts:
	src/game.cpp
	src/gamescenario.h
	src/scenarios/gamescenario.cpp
	src/ui/inputhandler.cpp
fix ws
Merge pull request #312 from voxelinc/scenario

Scenarios