Fix updateViewDependentProperties to compute pixelSizeVector after the projection has bee modified
Fix Frustum.containsSphere  documentation
'Model' refactor to support LODNode
Improve robustness for collada libraries, adapt to Model refactor
Add LODNode to support models from InterAtlas
Fix Collada example
Add ray with ray intersection on triangle
Modify ColladaNavigator to use picking
Remove data from GitHub