Don't forget to install the renderer2 binary if USE_RENDERER_DLOPEN=0
Merge pull request #26 from andreyv/master

Include opengl2 client in make copyfiles if USE_RENDERER_DLOPEN=0
Don't create images/framebuffers that won't be used, and add checks before use.
don't call va each frame in GLSL_VertexAttribPointers
Merge pull request #30 from inolen/nova_fix

don't call va each frame in GLSL_VertexAttribPointers
Fix OpenGL2 non-HDR map surface over brighting

Vertex lit map surfaces were saturating to white when
r_mapOverBrightBits was increased and r_hdr was disabled.

Now the color is normalized like lightmaps and lightgrid
when r_hdr is disabled. Which is the same as OpenGL1.

Noticeable on misc_model trisoup.
Merge remote-tracking branch 'ioquake3/master'