Another Transform todo: correct Undo names for using Transform.

Martin; I've added calls like:
	BIF_TransformSetUndo("Add Duplicate");
In advance of calling transform itself, to indicate that this is the
string name to be used for Undo, and also has to be done on ESC.
To make that possible I had to add a memset() to zero the global struct
TransInfo. Nicely done with if(Trans.mode==TRANS_INIT)

Not sure how this relates to setting constraints in advance... I always
found it tricky to work a non-initalized global struct. :)

source/blender/src/editobject.c

@@ -4132,8 +4132,10 @@ void adduplicate(float *dtrans)
 	clear_id_newpoins();
 	
 	countall();
-	if(dtrans==0) Transform(TFM_TRANSLATION, CTX_NONE);
-	
+	if(dtrans==0) {
+		BIF_TransformSetUndo("Add Duplicate");
+		Transform(TFM_TRANSLATION, CTX_NONE);
+	}
 	set_active_base(BASACT);
 	
 	allqueue(REDRAWNLA, 0);