Underscore names by default.

Stanza objects now accept the use of underscored names.

The CamelCase versions are still available for backwards compatibility,
but are discouraged.

The property stanza.values now maps to the old getStanzaValues and
setStanzaValues, in addition to _set_stanza_values and
_get_stanza_values.

sleekxmpp/clientxmpp.py

@@ -19,9 +19,9 @@ from sleekxmpp import stanza
 from sleekxmpp.basexmpp import BaseXMPP
 from sleekxmpp.stanza import Message, Presence, Iq
 from sleekxmpp.xmlstream import XMLStream, RestartStream
+from sleekxmpp.xmlstream import StanzaBase, ET
 from sleekxmpp.xmlstream.matcher import *
 from sleekxmpp.xmlstream.handler import *
-from sleekxmpp.xmlstream.stanzabase import StanzaBase, ET
 
 # Flag indicating if DNS SRV records are available for use.
 SRV_SUPPORT = True
@@ -203,7 +203,7 @@ class ClientXMPP(BaseXMPP):
                             to 'remove', the entry will be deleted.
             groups       -- The roster groups that contain this item.
         """
-        iq = self.Iq().setStanzaValues({'type': 'set'})
+        iq = self.Iq()._set_stanza_values({'type': 'set'})
         iq['roster']['items'] = {jid: {'name': name,
                                        'subscription': subscription,
                                        'groups': groups}}
@@ -222,7 +222,7 @@ class ClientXMPP(BaseXMPP):
 
     def get_roster(self):
         """Request the roster from the server."""
-        iq = self.Iq().setStanzaValues({'type': 'get'}).enable('roster')
+        iq = self.Iq()._set_stanza_values({'type': 'get'}).enable('roster')
         iq.send()
         self._handle_roster(iq, request=True)