Updated apache_ispconfig.conf.master to allow access to phpmyadmin and squirrelmail on opensuse 13.1.

- 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.

Reverted SVN trunk back to revision 3938 to remove changes in default theme an a replacement of the ispconfig logo.

- Added backup size to web backups

Updated apacheChanged apache_ispconfig.conf.master template to allow access to phpmyadmin and squirrelmail in redhat based distributions.

Changed apache_ispconfig.conf.master template to allow access to phpmyadmin and squirrelmail in debian.

Added: interface module web traffic statistics
Fixed: mail_traffic is now reported to master server instead of local
Fixed: GRANTs for slave server database user on master database

- Added deny directives to prevent direct access to the /var/www/clients and /var/www/domain.tld directories.