added a random delay to failed tasks
added a random delay to failed tasks

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