Virtualmin virtual-server module version 4.18 released

Howdy all,

I've just rolled out Virtualmin virtual-server version 4.18 for all repos (I think; I migrated to a new build/deploy setup a little while back and may still be working out the kinks, let me know if you see any problems).

Changes since 4.17:

• Updated the Dolibarr script installer to version 3.7.1, Wordpress to 4.2.2, SMF to 2.0.10, Revive Adserver to 3.2.0, Piwik to 2.13.1, Ghost to 0.6.2, Pydio to 6.0.8, Drupal to 7.38 and 6.36, ownCloud to 8.0.4, Coppermine to 1.5.36, Node.JS to 0.12.7, ZenPhoto to 1.4.9, Ghost to 0.6.4, X2CRM to 5.0.7, TikiWiki to 12.4 and 14.0, OpenCart to 2.0.3.1, MediaWiki to 1.25.1, Revive Adserver to 3.2.1, Roundcube to 1.1.2, Moodle to 2.9.1, phpMyFAQ 2.8.23, SugarCRM to 6.5.21, FengOffice to 3.2, Joomla to 3.4.3, Typo3 to 6.2.14, PiWik to 2.14.0, Django to 1.4.21, and phpMyAdmin to 4.4.11 and 4.0.10.10.
• Added an option for scheduled backups to terminate an existing backup to the same destination, rather than being blocked by it.
• Under Webmin versions 1.780 and above, use /var/webmin for logs and data files instead of /etc/webmin.

As always, let us know if you run into any problems.