Set @id by default on outgoing messages and presences.

Respects RFC6120 §8.1.3’s RECOMMENDED.

slixmpp/basexmpp.py

@@ -104,12 +104,12 @@ class BaseXMPP(XMLStream):
         #: :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
+        self.use_message_ids = True
 
         #: 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
+        self.use_presence_ids = True
 
         #: The API registry is a way to process callbacks based on
         #: JID+node combinations. Each callback in the registry is

slixmpp/test/slixtest.py

@@ -361,6 +361,7 @@ class SlixTest(unittest.TestCase):
         # Some plugins require messages to have ID values. Set
         # this to True in tests related to those plugins.
         self.xmpp.use_message_ids = False
+        self.xmpp.use_presence_ids = False
 
     def make_header(self, sto='',
                           sfrom='',