Add rest api to check for content hosted on a node.
Add rest api to check for content hosted on a node.

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