Added Global Setting to Server config tab to
  - Enable & Disable the feature
  - Set the Proxy HTTP & HTTPS Ports

Added Per site level switch to enable and disable feature (Located in the Web Tab under the advanced section)

Added Apache2 and Nginx vhost updates to enable proxy_protocol on the listen lines

Added New database column to web_domain called "proxy_protocol" to enable site level config (Patch file Added upd_0089.sql)

Updated the Base Table SQL file to include "proxy_protocol" field

Merged language files.

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

Added European Portuguese translation. Many thanks to Miguel Almeida to provide this language file set.

Fixes Encoding to UTF-8 and Add Some New Strings

Merged all language files.

Translation folow Fixed: FS#822 -for Main tabs at top not applying translations. Now login page and main tabs translations works. regards till.