README clean up.

Updated r46 with some bugfixes found post release.

Beautified usage example.

Fixed mouse listeners on draggable cubes example, also reverted to pr…

…evious aesthetic (sorry @alteredq).

REVISION++

* Added support to texture.offset in CanvasRenderer
* Removed ShadowVolume, ShadowVolumeDynamicMaterial and LensFlare classes.
* Removed Stencil Shadows and LensFlare code out of WebGLRenderer
* Added 2.59 folder to Blender, and removed old ones.

REVISION++

Added Süperfad's Mission Control to README's Featured Projects.

Applied latest Vector* improvements to current revision. Ok, that's the last one I promise :P

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