Add flexible days_between util function
Add flexible days_between util function

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