plugin XEP-0059: fixed bad disco handling

src/plugins/plugin_xep_0059.py

@@ -38,7 +38,7 @@ PLUGIN_INFO = {
     "type": "XEP",
     "protocols": ["XEP-0059"],
     "main": "XEP_0059",
-    "handler": "no",
+    "handler": "yes",
     "description": _("""Implementation of Result Set Management""")
 }
 
@@ -49,15 +49,13 @@ class XEP_0059(object):
     def __init__(self, host):
         log.info(_("Result Set Management plugin initialization"))
 
+    def getHandler(self, profile):
+        return XEP_0059_handler()
+
 
 class XEP_0059_handler(XMPPHandler):
     implements(iwokkel.IDisco)
 
-    def __init__(self, plugin_parent, profile):
-        self.plugin_parent = plugin_parent
-        self.host = plugin_parent.host
-        self.profile = profile
-
     def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
         return [disco.DiscoFeature(NS_RSM)]