Commented out face transp changing when switching images, this is more annoying then helpful.

Edited Game engine docs to note that the matrix will need to be transposed if used with Mathutils.Matrix()
Edited "Collision" button since ray-sensor also uses collision.

source/gameengine/PyDoc/KX_GameObject.py

@@ -50,8 +50,9 @@ class KX_GameObject:
 		"""
 		Sets the game object's orientation.
 		
-		@type orn: 3x3 inverted rotation matrix, or Quaternion.
+		@type orn: 3x3 rotation matrix, or Quaternion.
 		@param orn: a rotation matrix specifying the new rotation.
+		@note: When using this matrix with Blender.Mathutils.Matrix() types, it will need to be transposed.
 		"""
 	def alignAxisToVect(vect, axis):
 		"""
@@ -71,6 +72,7 @@ class KX_GameObject:
 		
 		@rtype: 3x3 inverted rotation matrix
 		@return: The game object's rotation matrix
+		@note: When using this matrix with Blender.Mathutils.Matrix() types, it will need to be transposed.
 		"""
 	def getLinearVelocity(local):
 		"""