DrBotIRC: document irclib.IRC.connections

this is before i stupidly remove it again

DrBotIRC.py

@@ -250,6 +250,9 @@ class DrBotIRC(irclib.IRC):
         except NoOptionError: pass
 
         self.server = DrBotServerConnection(self, user, nick)
+
+        # though we only handle one connection, the underlying library supports
+        # multiple. append the new one though we intend no others
         self.connections.append(self.server)
 
         return self.server