- Change configuration handling so that no default ports are given, but instead 0 is set (port to be dynamic)
- TransporterRegistry::start_service now only tries to connect when fetched port number > 0


ndb/include/util/SocketServer.hpp:
  Update prototype of setup() to take a pointer to the port (so we can return the port we bound to)
ndb/src/common/transporter/TransporterRegistry.cpp:
  Only try to connect_client when we have a valid port number (i.e. > 0)
ndb/src/common/util/SocketServer.cpp:
  ::setup(): Return the port we bound to
ndb/src/cw/cpcd/main.cpp:
  Use new SocketServer::setup() api - returns port we bound to.
ndb/src/mgmsrv/main.cpp:
  Conform to new SocketServer::setup() API (port is a pointer, returning the port we bound to)
ndb/src/mgmsrv/ConfigInfo.cpp:
  fixPortNumber:
  Don't create port numbers when none are specified, just set 0 (dynamic)
ndb/src/mgmsrv/MgmtSrvr.cpp:
  use DBUG_RETURN correctly in setConnectionDbParameter