Fixup for GLEW 1.11.0 log.html
Use GL_NV_path_rendering spec (including version 1.3) rather than hard-coded override.
Added support for mingw-w64 cross-compilation.
Fixups for GL_KHR_robustness support.
For Pelles C compiler, _GL_H check

https://sourceforge.net/p/glew/bugs/254/
Merge pull request #16 from BryceMehring/master

Added support for mingw-w64 cross-compilation.
Update snapshots available for download
Touch-up: Sort the enums (tokens) in a stable manner for consistency in include files.