ndb/src/common/util/Bitmask.cpp:
  Bug fixes + better unit test
ndb/src/kernel/blocks/dbtup/DbtupRoutines.cpp:
  fix
ndb/test/ndbapi/testBitfield.cpp:
  impl. create_random_table and transactions
ndb/test/src/HugoCalculator.cpp:
  Only use "var" size when var-size