[FIX] Registrants modify column caption
[FIX] Registrants modify column caption

OmeGak/indico,mic4ael/indico,pferreir/indico,mvidalgarcia/indico,mic4ael/indico,ThiefMaster/indico,mic4ael/indico,indico/indico,DirkHoffmann/indico,indico/indico,mvidalgarcia/indico,pferreir/indico,DirkHoffmann/indico,indico/indico,indico/indico,OmeGak/indico,ThiefMaster/indico,pferreir/indico,mvidalgarcia/indico,DirkHoffmann/indico,ThiefMaster/indico,OmeGak/indico,DirkHoffmann/indico,pferreir/indico,mic4ael/indico,OmeGak/indico,mvidalgarcia/indico,ThiefMaster/indico