Make sure that the node itself is set in the m_connected_nodes when connected


ndb/src/kernel/vm/Configuration.cpp:
  make sure we destroy the iterator before reusing the variable
ndb/src/mgmsrv/MgmtSrvr.cpp:
  make sure that the "conections are up to date" when exiting from MgmtSrvr::transporter_connect()
ndb/src/ndbapi/ClusterMgr.cpp:
  Make sure that the node itself is set in the m_connected_nodes when connected