Change log:
- Removed environment variable
SGL_SHARED_MEMORY_DIRECT - Significantly improved performance
- Fixed frames appearing on other clients when running more than one client
- Fixed VBOs with non-zero strides
- Added many ARB/EXT functions, allowing older applications to run
- Bumped default memory allocation from 16 to 32 MiB
- Added new overlay font
- Added support for modern WGL context creation
- Added implementations of glMapBuffer, glMapNamedBuffer, glGetTexImage
- Fixed glShaderSource
- Added 6 new extensions
- Fixed glColorPointer not handling GL_RGBA/GL_BGRA properly
- Fixed glNormalPointer possibly passing an incorrect size