Added vec3 and color parameters for MeshShaderMaterial. Also moved normal and view matrices into default parameters.

Firefox doesn't like Typed Array constructors without explicit sizes.

Also in Firefox there were some weird artefacts in Perlin noise when using Int8Array (patterns were repeated across diagonal lines).

For this extended Cube primitive with "sides" parameter.

You can use it to switch off cube faces like this:

    var cube = new Cube( 100, 100, 100, 1, 1, materials, false, { ny: false } );

Default is all six faces on => { px: true, nx: true, py: true, ny: true, pz: true, nz: true }

Thanks again Firefox for verbose WebGL warnings.

Also made code slightly faster (and more Pythonic).

Pushed revision number to 31.

Added WebGL Texture Filters.

TODO: Would be nice if `buildIncludes()` would reuse `buildCommon()` array.

Need to test this on IE9... :)_

Maybe `Geometry::computeNormals` should be renamed to `Geometry::computeFaceNormals`?

As suspected, this was caused by incorrect shader state management when switching between multiple shaders (thanks Firefox for verbose warnings).

Also, testing WebGL performance is very tricky. You can get different performance depending on the state of browsers / system (messed up state can be 10-66% slower):

1. freshly started Chrome can be much faster than Chrome that already ran few WebGL demos (which are now closed)
2. demo opened in new Chrome tab can be faster than demo reloaded in the same tab
3. even demos opened and closed in Firefox can slow down Chrome demos

This suggests that browsers do not clean GPU state properly :(

Added irc channel info in README.