This should help with the  PURGE STALE SESSIONS problem.


ndb/src/common/transporter/TransporterRegistry.cpp:
  No longer need to do funny connecting and port reporting in start_service as we
  convert the configuration mgm after we have bound to the ports we have to report.
  
  use a BaseString for constructing the connect string.
ndb/src/kernel/main.cpp:
  Reuse the mgm handle used to fetch configuration as a transporter connection.
ndb/src/kernel/vm/Configuration.cpp:
  m_mgmd_host is now a BaseString.
ndb/src/kernel/vm/Configuration.hpp:
  use BaseString for m_mgmd_host