Changed find_unstable_nodes to use pattern matching on input.
Changed find_unstable_nodes to use pattern matching on input.

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