Update CSS upload controller
Update CSS upload controller

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