Added a TODO comment.

src/record_dialog.py

@@ -104,5 +104,7 @@ class RecordDialog(Gtk.Dialog):
       return self.sources[field_name].get_text()
 
    def lookup_callback(self, widget):
-      print "hello!"
+      # TODO: If a session doesn't already exist: Show a username and password dialog, and initiate a session.
+      # Get the callsign-related data from the qrz.com database.
+      return