Spent the whole day (around a nap) working through the PyOpenGL bug-tracker. A number of minor fixes here and there, a few new test cases, and a lot of stale-dated stuff. Got the vertex buffer object Demo working again along the way.

Need to test Win32 extension handling (I have a report that it's broken due to the need for an initialised context before creating the extension pointers). I also want to see about creating a Context object for OpenGLContext using pyglet. Another day, however.