Add Category.deep_children_(count|query)
Add Category.deep_children_(count|query)

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