skip writing dkim-values for inactive domains
removed the public-dkim-key from the interface
added german language-file

- Added dkim installation to installer.
- Added backup filesize in backup cronjob.

http://www.howtoforge.com/forums/showthread.php?t=62691

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

 - added configuration options to server config (web tab, php section)
 - do not update custom php.inis if md5sum file does not exist

- need to have the pecl idn and intl modules installed
  or
- have the idna_convert class in the classes/idn/ path

- Added overtraffic notifications to traffic quota system (part of FS#2059 - Extend Traffic quota system)

This option can be enabled under System > Server config and is named "Web folder protection".

- Improved support for multiple PHP versions. Additional PHP versions have now their own form and database table.

- Added "actions" framework in server to replace the functions provided by the core modules
- Moved system update function from remoteactins core module to software update plugin.

- Added SNI config field in sysetm > server config > web.

- Removed ufw firewall tab.

- Fixed FS#1745.