using new config variable FragmentLogFileSize (4M - 1G)


mysql-test/ndb/ndb_config_1_node.ini:
  change log file size (test)
mysql-test/ndb/ndb_config_2_node.ini:
  change log file size (test)
storage/ndb/include/mgmapi/mgmapi_config_parameters.h:
  add new confif parameter
storage/ndb/src/kernel/blocks/dblqh/Dblqh.hpp:
  make logfile size configurable
storage/ndb/src/kernel/blocks/dblqh/DblqhInit.cpp:
  make logfile size configurable
storage/ndb/src/kernel/blocks/dblqh/DblqhMain.cpp:
  make logfile size configurable
storage/ndb/src/mgmsrv/ConfigInfo.cpp:
  add new config variable
storage/ndb/src/ndbapi/ndberror.c:
  update error message