Add options to auto add ID values to message and presence stanzas.

sleekxmpp/basexmpp.py

@@ -114,6 +114,17 @@ class BaseXMPP(XMLStream):
         #: ``'to'`` and ``'from'`` JIDs of stanzas.
         self.is_component = False
 
+        #: Messages may optionally be tagged with ID values. Setting
+        #: :attr:`use_message_ids` to `True` will assign all outgoing
+        #: messages an ID. Some plugin features require enabling
+        #: this option.
+        self.use_message_ids = False
+
+        #: Presence updates may optionally be tagged with ID values.
+        #: Setting :attr:`use_message_ids` to `True` will assign all
+        #: outgoing messages an ID.
+        self.use_presence_ids = False
+
         #: The API registry is a way to process callbacks based on
         #: JID+node combinations. Each callback in the registry is
         #: marked with: