reworked Vector classes, no change in API, reordered methods, divide-by-zero prevention, removed use of .set() in methods for better performance

Added offset and repeat properties to Texture. It'll be tricky to add support for this on CanvasRenderer but should be easy on WebGLRenderer.

It seems lineWidth defaults are different in Chrome and Firefox.

Still there are some clearing artefacts in Firefox :/

Disabled ambient light in trackball Earth example (to get rid of clouds in unlit part of the globe).

Added support for custom attribute buffers to be correctly split across large meshes (>65K vertices)

Fix for Face4 rayMesh (rayTriangle typo). RaycastNearest resturns index of face in addition to distance.

MeshCollider takes original mesh as argument. MeshCollider's rayMesh extended to support Face4 faces (implemented as two rayTriangle calls)

Removed duplication of vertices, faces, and normals from MeshColliderWBox, and pass mesh directly to MeshCollider constructor

Added ROME to the featured projects list.

Also added silly path camera example.