Correct too many parameters in q3gl2_sun description in docs.
OpenGL2: VBO cleanup.
OpenGL2: Vertex array object support.
OpenGL2: Reduce redundant GL calls.
OpenGL2: Fix invalid texture parameter.
OpenGL2: Interleave vertex data for static MD3s.
OpenGL2: Fix missing surfaces with r_mergeMultidraws 2.
Fix a bug in previous commit.
OpenGL2: Bit of multidraw optimization.
OpenGL2: Fix corrupt models.
OpenGL2: Speed up tonemap shader.
OpenGL2: Change normal/tangent vertex encoding.
Merge remote-tracking branch 'ioquake3/master'

Conflicts:
	code/renderergl2/tr_backend.c
	code/renderergl2/tr_glsl.c
	code/renderergl2/tr_mesh.c
	code/renderergl2/tr_shade.c
	code/renderergl2/tr_surface.c