* source/gameengine/PyDoc/bge.types.rst:
  KX_PolygonMaterial was missing the parent class indication (PyObjectPlus)
* source/blender/python/doc/sphinx_doc_gen.py:
  * unified all the "undocumented" descriptions, like
    http://www.blender.org/documentation/250PythonDoc/bpy.ops.anim.html#bpy.ops.anim.keyframe_delete_button
    so that it will be easy for Alex to CCS 'em and also now people will have a link to contribute descriptions,
    see http://wiki.blender.org/index.php/Dev:2.5/Py/API/Documentation/Contribute
  * moved the note about bpy_struct not being available in the api
    in a proper note directive, so that it's more evident
    (I didn't see it at first)