- Added missing option in centos dovecot.conf file

- changed/harmonized order of clients in client select fields ("ORDER BY client.company_name, client.contact_name, sys_group.name")

- Updated version number to 3.0.5.4rc1

- 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.