Cleaned XEP-0249 plugin, added tests.

sleekxmpp/plugins/xep_0249/stanza.py

@@ -1,7 +1,16 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Copyright (C) 2011 Nathanael C. Fritz, Dalek
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
 from sleekxmpp.xmlstream import ElementBase
 
 
 class Invite(ElementBase):
+
     """
     XMPP allows for an agent in an MUC room to directly invite another
     user to join the chat room (as opposed to a mediated invitation
@@ -17,13 +26,14 @@ class Invite(ElementBase):
       </message>
 
     Stanza Interface:
-        jid          -- The JID of the groupchat room
-        password     -- The password used to gain entry in the room
-                        (optional)
-        reason       -- The reason for the invitation (optional)
+        jid      -- The JID of the groupchat room
+        password -- The password used to gain entry in the room
+                    (optional)
+        reason   -- The reason for the invitation (optional)
 
     """
+
     name = "x"
     namespace = "jabber:x:conference"
     plugin_attrib = "groupchat_invite"
-    interfaces = ("jid", "password", "reason")
+    interfaces = ("jid", "password", "reason")