Merged revisions 1832-1836 from stable (added dovecot support for debian squeeze and added a new distid and class for debian6 specific modifications.

- Added Installation instructions for Fedora 12
- Added Dovecot support for fedora 12

- added installation instructions for opensuse 11.2 with bind and dovecot
- fixed a bug in bind plugin.
- improved opensuse installer.

Added Support for Sieve mail filtering language on dovecot servers.

- as apache 2.2.14 the ssl directory moved to /etc/ssl/apache2 from /etc/apache2/ssl

Implemented: FS#973 - Gentoo support for installer. Fixed FS#974 - Directory mode for firewall configuration

Fixed a problem with broken tolower function in maildrop when compiled with some specific gcc settings by forcing lowercase addresses in master.cf and adding a workaround in case that tolower returns a empty result.

Fixed: Missing server.ini config entries for vlogger and jailkit
Added: Admin interface server_config for vlogger and cron

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

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Fixed a bug that prevented the modification of website settings of a site that the user created.

- The home directory of a shell user gets deleted when the user is deleted.