WebGLRenderer: renamed geometryChunks to geometryGroups :P

It's now r34 btw.

Commented Camera frustrum code. It's not being used, right?

Only Blender 2.56 exporter and OBJ converter were tested. If somebody is using other ones, please reexport some files to be sure they work.

Thanks to empaempa for implementing this feature ;)

Mergable: WebGLRenderer.js: changed so camera.matrixWorldInverse is used instead of camera.matrixWorld.

Work-in-progress.

Refactored everything to use CamelCase naming for properties. Plus some smaller fixes here and there.

Went through all examples, all should work.

JSON files exported from Blender / converted from OBJ files still use underscored property names internally. I don't know, should these also be changed?

- Wrong in last commit, now the inversion of position is removed

- Changed so it sets an ordinary matrix. Also removed inversion of position, which broke A LOT of the examples.

WebGLRenderer:
- Using camera.matrixWorldInverse instead of camera.matrixWorld
- Changed frustum check to camera.frustumContains( object );
- Moved cameraInverse * matrixWorld to vertex shader (needs testing!) (note: normals not fixed yet!)

Object3D.addChild:
- Recurses up through hierarchy until reaches scene and adds itself to scene.objects/sounds/lights

Camera:
- Changed inverseMatrix -> matrixWorldInverse

I don't remember when was the last time I used them. Current Web Developer Tools do this already for you.

Color::updateRGBA ⟶ Color::updateRGB

Blender plugins folder rename.

Added RequestAnimationFrame system to the new examples.