Blender Git Loki

many operators uses Bases, for the python to set operators context python too needs to be able to access bases.
- added scene.bases (like scene.objects)
- renamed group create operator.

Example
scene = bpy.data.scenes[0]
C = {}
C["scene"] = scene
C["selected_editable_bases"] = [scene.bases[2], scene.bases[3]]

bpy.ops.group.create(C)


Also made operator fake modules not return __call__ (reported by Stani, fixes autocomp. bug)