Fix ignoring Fridays in booking time calculation
Fix ignoring Fridays in booking time calculation

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