PyAPI: coerce mathutils values. (vectors, quats, eulers) as proposed here:

http://wiki.blender.org/index.php/Dev:2.5/Source/Python/Mathutils#Coerce_Method_Arguments

source/blender/python/generic/mathutils.c

@@ -80,8 +80,8 @@
 
 //-------------------------DOC STRINGS ---------------------------
 static char M_Mathutils_doc[] =
-"This module provides access to matrices, eulers, quaternions and vectors.";
-
+"This module provides access to matrices, eulers, quaternions and vectors."
+;
 static int mathutils_array_parse_fast(float *array, int array_min, int array_max, PyObject *value, const char *error_prefix)
 {
 	PyObject *value_fast= NULL;