module_monitoring - now only modifies postfix main.cf if the email server is not the same as the monitoring server.
Authentication checks for modules - added in checks for email and moodle.
setup_web_controls - doesnt try and create a new web management key tab if one has already been created.
Error checks for modules so that the users sees that a server has incorrect authentication.
setupmonitoring - disables screensaver for xfce on the monitoring server.