AppManager now creating instances of SceneManager and InputManager.
AppManager now being used in mainGlut
Cleaning up debug information.
Updated GlutKeyboardInput to handle normal and special glut functions for use in mainGlut.
Added gameMode accessor to the Scene class
Updated throwProjectile method in Scene class to handle only direction and launch from the current head position.
addModelNode in Scene now uses the cursor to place the nodes.

This has not yet been tested fully, and may not work properly.
Added moveHead method to Scene to add ability to update position through out interaction methods.
Updated moveCursor methods into single method that takes a direction.
Tightened up the SceneCommands to be more powerful with less complexity.
Merge branch 'master' of https://github.com/VRAC-WATCH/vr_builder

Conflicts:
	include/Scene.h
	src/InteractionManager.cpp
	src/Scene.cpp
	src/SceneManager.cpp
	src/VRBuilderApp.cpp