SOIL sources included, plus some house-keeping

Hi Dan,

As promised, here is the pull request. I hope you don't mind, but I added a few extra commits beyond what we had talked about. Namely: Adding a conditional include for gl.h so that it should work on OS X (not actually tested, though, I'm afraid) and removing the dependancy to the opengl egg in the meta file (replacing it with a foreign-depends on "GL"). Additionally, I updated the README to include the functions added in 1.1.0 and updated the version history - as well as added my name to the authors list ;) Finally, I incremented the minor version in the setup and release-info file.

Hopefully all there is left for you to do is review, tag, and update the wiki!