ObColor wasnt converted into an RNA string.

Updated Mathutils.Vector/Euler/Quaternion/Matrix so these are types rather then module methods, each type now has a tp_new function, matching python builtins float/int/str.
Also cleaned up float conversion and arg passing.

Changed buttons_objects.py...
 if ob in groups.objects: # no longer works
 if ob.name in groups.objects: # is the new syntax
...its more dict like and a lot faster (avoids python iterating over each item and comparing each, use a single rna lookup instead).

source/blender/python/generic/euler.h

@@ -54,13 +54,6 @@ be stored in py_data) or be a wrapper for data allocated through
 blender (stored in blend_data). This is an either/or struct not both*/
 
 //prototypes
-PyObject *Euler_Zero( EulerObject * self );
-PyObject *Euler_Unique( EulerObject * self );
-PyObject *Euler_ToMatrix( EulerObject * self );
-PyObject *Euler_ToQuat( EulerObject * self );
-PyObject *Euler_Rotate( EulerObject * self, PyObject *args );
-PyObject *Euler_MakeCompatible( EulerObject * self, EulerObject *value );
-PyObject *Euler_copy( EulerObject * self, PyObject *args );
 PyObject *newEulerObject( float *eul, int type );
 
 #endif				/* EXPP_euler_h */