removed obsolete input
removed deprecated stuff
added rex_context::setParam()
removed unreachable statement
fixed phpdoc
updated jquery + pjax
don't show "Bitte anmelden" twice
removed getIcon(), toIcon()
moved mediapool code into addon
expandable image types and doc types
upload handling of blocked extensions
system settings: better labels, added lang select, removed path
added hidden feature to update core assets
fixed accesskeys