- mail accounts not locked when client locked
- mail account sending and receiving lock separated
- fixed error in query
- fixed wording to match separeted locks

- Updated Linux Distribution detection to recognize all wheezy sub versions correctly.

- Added function to detect the apache version to installer.
- Added support for apache 2.4 to vhots templates for ispconfig vhost and apps vhost in installer.

This reverts commit 4cd62d78.

- Make sure the correct sys_groupid is saved for web folders and web folder users.

Fixed: FS#3350 - [Dovecot] Warning: mysql: Query failed, retrying: Unknown column 'filter' in 'where clause'