* Applied a small fix to a bug reported by Guignot:

When a script that used setAttr for Camera Data objs (the bug also
    affected some other modules) was executed multiple times, Blender
    would crash after, let's say, the first 5 or 6 tries.  Problem, as
    Guignot pointed, was with reference counting.  Should be ok now, all
    affected modules were fixed.
* The Scene module is now "complete" (= 2.25).
* Made some necessary updates to Object and NMesh.

source/blender/python/api2_2x/Bone.c

@@ -625,7 +625,7 @@ static int BoneSetAttr (C_Bone *self, char *name, PyObject *value)
   PyObject *valtuple; 
   PyObject *error = NULL;
 
-  valtuple = Py_BuildValue("(N)", value); /* the set* functions expect a tuple */
+  valtuple = Py_BuildValue("(O)", value); /* the set* functions expect a tuple */
 
   if (!valtuple)
     return EXPP_ReturnIntError(PyExc_MemoryError,