core, plugins: fixed bad namespace in stanza creation

src/plugins/plugin_xep_0095.py

@@ -124,9 +124,9 @@ class XEP_0095():
         @param data: error specific data (dictionary)
         @param profile: %(doc_profile)s
         """
-        client = self.host.getClient(profile)
-        assert(client)
-        result = domish.Element(('', 'iq'))
+        _client = self.host.getClient(profile)
+        assert(_client)
+        result = domish.Element((None, 'iq'))
         result['type'] = 'result'
         result['id'] = iq_id
         result['to'] = to_jid 
@@ -148,7 +148,7 @@ class XEP_0095():
             if data.has_key('custom') and data['custom']=='failed':
                 condition_el.addContent('Stream failed')
 
-        client.xmlstream.send(result)
+        _client.xmlstream.send(result)
 
     def acceptStream(self, iq_id, to_jid, feature_elt, misc_elts=[], profile='@NONE@'):
         """Send the accept stream initiation answer
@@ -156,10 +156,10 @@ class XEP_0095():
         @param feature_elt: domish element 'feature' containing stream method to use
         @param misc_elts: list of domish element to add
         @param profile: %(doc_profile)s"""
-        client = self.host.getClient(profile)
-        assert(client)
+        _client = self.host.getClient(profile)
+        assert(_client)
         info (_("sending stream initiation accept answer"))
-        result = domish.Element(('', 'iq'))
+        result = domish.Element((None, 'iq'))
         result['type'] = 'result'
         result['id'] = iq_id
         result['to'] = to_jid 
@@ -167,7 +167,7 @@ class XEP_0095():
         si.addChild(feature_elt)
         for elt in misc_elts:
             si.addChild(elt)
-        client.xmlstream.send(result)
+        _client.xmlstream.send(result)
 
     def proposeStream(self, to_jid, si_profile, feature_elt, misc_elts, mime_type='application/octet-stream', profile_key='@NONE@'):
         """Propose a stream initiation