vertexbuffer : added TexCoordExt, which is the same as TexCoord but means "use vec4 for TexCoord"

when a stream is not found in the vertex declaration at bind time.

empty vertex declarations even though many video card
drivers do not support them — and they should.

internal format is then automatically deduced. Only a few 8-bit RGB
or RGBA formats are supported for now.

with a null argument, and the texture stuff was completely messed up.

texture class refactor.

hardcoded and only the fractal demo uses it, but everything will eventually switch.

calls so that they take a number of vertices or indexes, not elements.

accept them as variable names.

successfully parse a few of our full GLSL/HLSL shaders.

will not try to use X11.

Shader::SetUniform override, and implement most of the FBO code for
the Direct3D backend.

supported yet).

work on OpenGL ES contexts.

GLSL grammar and some personal attempts at writing an HLSL grammar.

and support automake 1.12 in the bootstrap script.

attributes if GL version isn't 3.0 at least.