It is now possible to add "navigation-text" without links (actions) to the left navigations-side of the template (needed by the monitor module to add the server-dropdown)

Added missing strings from english language files to german language files. TODO: Translate missing strings

Moved ISPConfig log location for the daemon log to /var/log/ispconfig/ispconfig.log and added the logfile as option to the logfile viewer in the monitoring module.

- Fixed bug with maildir creation in mail plugin.

- Changed shell of website linux user to /bin/false