2.50:

svn merge https://svn.blender.org/svnroot/bf-blender/trunk/blender -r19820:HEAD

Notes:
* Game and sequencer RNA, and sequencer header are now out of date
  a bit after changes in trunk.
* I didn't know how to port these bugfixes, most likely they are
  not needed anymore.
  * Fix "duplicate strip" always increase the user count for ipo.
  * IPO pinning on sequencer strips was lost during Undo.

source/gameengine/Ketsji/KX_PyMath.cpp

@@ -75,9 +75,8 @@ bool PyObject_IsMT_Matrix(PyObject *pymat, unsigned int rank)
 	return false;
 }
 
-bool PyOrientationTo(PyObject* pyval, MT_Matrix3x3 &mat, const char *error_prefix)
+bool PyOrientationTo(PyObject* pyval, MT_Matrix3x3 &rot, const char *error_prefix)
 {
-	MT_Matrix3x3 rot;
 	int size= PySequence_Size(pyval);
 	
 	if (size == 4)