[FIX] Boolean config vars -> yes/no
[FIX] Boolean config vars -> yes/no

 * For the sake of consistency;

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