refactoring
fixed collision detection
fixed boundingBox bug
fixed collision detection
fixed selection and made meshes invisible
improved collision precision (needed otherwise some models clip through others)
moar model refactorings
added ModelWrapper class
moved bounding box and bounding mesh creation to the model wrapper class
moved some code from the main.js file
Merge pull request #19 from BSG-TUDelft/modelData

Collision and selection fixes