Do not compute near/far frustum clipping planes by default. Fixed bug when clipping childs of MatrixTransform Nodes
Disable frustum culling by default, enable it on PagedLOD example
Added SKY_LIGHT that mimics the OSG SKY_LIGHT
Added tests for different light types and fixed typo in renderStage
Moved getFrustumPlanes to the cullvisitor
Merge pull request #75 from jtorresfabra/fix_frustum

Do not compute near/far frustum clipping planes by default. Fixed bug wh...
Merge pull request #79 from jtorresfabra/sky_light

Added SKY_LIGHT that mimics the OSG SKY_LIGHT
syncing with branch develop