[sync] syncml datatree group name

[Karsten Fourmont]

Hi Chuck,

your change to Backend.php

http://cvs.horde.org/diff.php/framework/SyncML/SyncML/Backend.php?r1=1.16&r2=1.17&ty=u

contains this:

-        $params = array_merge($params, array('group' => 'syncml'));
+        $params = array_merge($params, array('group' => 'syncml.'));

This results in a new groupname for the syncml datatree. Is this a typo 
or intentionally? All existing sync metadata is lost with this change.

If you don't mind I'd like to change it back to 'syncml' only.

  Karsten