- Added switch to disable import function in config.inc.php
- Merged language files.

- Implemented:  FS#1312 - disabling a whole client
    -> see bugtracker comments for more details
- Fixed:  FS#3060 - Subdomain vhost ip update on web domain update
- Implemented:  FS#3078 - Change client template system: delete specific template from limits 
    -> including link in billing module to link specific assigned templates
- Fixed:  FS#3058 - Error in mail quota calculation when changing tab in mailboxe configuration
    -> quota limit no longer checked if it was not changed
- Fixed: Deleting a client's template could mess up his assigned templates
- Added: remoting functions to change client templates the new way

Changed default for "Install ISPConfig Web Interface" to 'n' for multiserver slave installs in extended install mode.

- Fixed "PHP Notice:  Undefined variable: rbl_list in /tmp/ispconfig-3.0.5/install/dist/lib/fedora.lib.php on line 173"
- Redirect Apache/nginx/PHP-FPM/BIND restart errors to STDOUT.

- Added [SERVERNAME] placeholder to webmail URL.

- Added "Rewrite Rules" field to the "Redirect" tab so that customers can set rewrite rules themselves on nginx.

  It is now possible to put a customized copy of each .master template file into
  /usr/local/ispconfig/server/conf-custom/install/
  to keep manual changes done in this file.
  If existing, these .master files are used on ISPConfig upgrade instead of the provided installer templates.

- Admins can now choose to be notified by email about debug, warning or error messages in the server process.

  - send quota notifications each X days instead of each day
  - send notification when quota is ok again
  - cleaned up mail sending code