not working obj
Merge branch 'master' of github.com:walkevin/PBSExercises
Added Ellipse class
added objects which we can present
Added a function for a back transformation
Implemented Paint Tracers. Not very efficient but who cares.
Added functionality to the SphSolver for change of Coordinates for the Collision Handler
War doch ein Transformations Fehler, habe vergessen, dass man Geschwindigkeiten nicht verschiebt
"Centralized" coordinate transformation
Merge branch 'master' into rotate_fixed

Conflicts:
	code/project/Collision/CollisionHandler.cpp
	code/project/SPH/SphSolver.cpp
	code/project/SPH/SphSolver.hpp
	code/project/Simulation/Paintball.cpp