Mathutils doc improvements + other small things

- bpy.app moved into PyStructSequence (used by sys.float_info)
- added buildinfo into bpy.app.build_*
- bpy.ui removed (wasnt used)
- include external example files in Mathutils docs (only Mathutils and Vector are currently written)
- added support to auto document PyStructSequence's
- CMake had "'s inside all its strings.

source/blender/python/generic/BGL.h

@@ -41,7 +41,6 @@
 #endif
 
 #include <Python.h>
-#include <GL/glew.h>
 
 PyObject *BGL_Init(void);