add rss feed to the header

Signed-off-by: Patrick Konstandin <support@flatfiler.de>
remove unused mootools datepicker

Signed-off-by: Patrick Konstandin <support@flatfiler.de>
remove unused mootools datepicker

Signed-off-by: Patrick Konstandin <support@flatfiler.de>
improved processing of rss feeds

Signed-off-by: Patrick Konstandin <support@flatfiler.de>