Merge orca.ndb.mysql.com:/space_old/pekka/ndb/version/my50-mrg

into  orca.ndb.mysql.com:/space_old/pekka/ndb/version/my51-mrg


sql/ha_ndbcluster.cc:
  SCCS merged
sql/handler.h:
  SCCS merged
sql/sql_update.cc:
  SCCS merged
storage/ndb/include/ndbapi/NdbIndexScanOperation.hpp:
  SCCS merged
storage/ndb/include/ndbapi/NdbScanOperation.hpp:
  SCCS merged
storage/ndb/src/kernel/blocks/dblqh/Dblqh.hpp:
  SCCS merged
storage/ndb/src/kernel/blocks/dblqh/DblqhMain.cpp:
  SCCS merged
storage/ndb/src/mgmsrv/ConfigInfo.cpp:
  SCCS merged
storage/ndb/src/ndbapi/NdbScanOperation.cpp:
  SCCS merged