added prefixmode for ddfs rm
added prefixmode for ddfs rm

pombredanne/disco,pavlobaron/disco_playground,ErikDubbelboer/disco,oldmantaiter/disco,seabirdzh/disco,ErikDubbelboer/disco,ktkt2009/disco,pooya/disco,oldmantaiter/disco,mwilliams3/disco,pavlobaron/disco_playground,ktkt2009/disco,simudream/disco,seabirdzh/disco,mwilliams3/disco,discoproject/disco,seabirdzh/disco,pombredanne/disco,mwilliams3/disco,ErikDubbelboer/disco,mozilla/disco,mwilliams3/disco,ktkt2009/disco,pavlobaron/disco_playground,beni55/disco,pooya/disco,discoproject/disco,discoproject/disco,scrapinghub/disco,pooya/disco,simudream/disco,simudream/disco,ktkt2009/disco,scrapinghub/disco,scrapinghub/disco,mozilla/disco,ErikDubbelboer/disco,ktkt2009/disco,pombredanne/disco,mozilla/disco,oldmantaiter/disco,ErikDubbelboer/disco,scrapinghub/disco,discoproject/disco,mwilliams3/disco,seabirdzh/disco,discoproject/disco,simudream/disco,pombredanne/disco,oldmantaiter/disco,beni55/disco,beni55/disco,pavlobaron/disco_playground,beni55/disco,oldmantaiter/disco,pombredanne/disco,seabirdzh/disco,mozilla/disco,simudream/disco,pooya/disco,beni55/disco