added extra calls to retrieve connectstring used
    reengineered connect somewhat to make retries etc explicit


mysql-test/r/ndb_index_unique.result:
  fixed error in test result
ndb/include/mgmapi/mgmapi.h:
  added extra calls to retrieve connectstring used
ndb/include/mgmcommon/ConfigRetriever.hpp:
  added extra calls to retrieve connectstring used
ndb/include/ndbapi/ndb_cluster_connection.hpp:
  added extra calls to retrieve connectstring used
  reengineered connect somewhat to make retries etc explicit
ndb/src/common/mgmcommon/ConfigRetriever.cpp:
  added extra calls to retrieve connectstring used
ndb/src/mgmapi/mgmapi.cpp:
  added extra calls to retrieve connectstring used
ndb/src/mgmclient/CommandInterpreter.cpp:
  moved parse of quit to avoid connect before
ndb/src/ndbapi/Ndbinit.cpp:
  reengineered connect somewhat to make retries etc explicit
ndb/src/ndbapi/ndb_cluster_connection.cpp:
  added extra calls to retrieve connectstring used
  reengineered connect somewhat to make retries etc explicit
ndb/tools/listTables.cpp:
  reengineered connect somewhat to make retries etc explicit
sql/ha_ndbcluster.cc:
  added extra calls to retrieve connectstring used
  reengineered connect somewhat to make retries etc explicit