Closes-Bug: #1391346
  Issue: Storage graphs not seen on huge cluster.
  Fix: Few nodes were added through add_node command and storage
       daemon was not started in the newly added node.
       Wrote code to have the daemon started by add_node command.
  Test: Tested on local cluster
  Made changes based on review-1

Change-Id: Ic742fe5f34f5705229c2bdaef523e653ab691100