Revert to the FUTURE_PYTHON_API, this means:

- switching the define on in buildsystems (NaN, auto and msvc are done)
- again import _Blender, which is the C module, from the Python modules

intern/python/modules/Blender/Material.py

@@ -14,7 +14,7 @@
     Scene.getCurrent().link(ob)                # link object to current scene
 """
 
-#import _Blender.Material as _Material
+import _Blender.Material as _Material
 import shadow
 #import Blender.Curve as Curve