*8854* Add config variable for X_FORWARDED_FOR
*8854* Submodule update
Merge pull request #27 from asmecher/8836-fix

*8836* Add missing styling to PDF viewer
*8812* Add show/hide lingo
*8812* Submodule update ##asmecher/8812-fix##
*8812* Submodule update
*8707* Submodule update ##MichaelThessel/8707_jquery##