Add apis to retrieve the client and master versions.
Add apis to retrieve the client and master versions.

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