Add support/test for using my.cnf [cluster_config]


mysql-test/r/ndb_config.result:
  Add support for ndb_config to read my.cnf
mysql-test/t/ndb_config.test:
  Add support for ndb_config to read my.cnf
ndb/src/mgmsrv/InitConfigFileParser.cpp:
  merge
ndb/tools/ndb_config.cpp:
  Add support for ndb_config to read my.cnf
mysql-test/std_data/ndb_config_mycnf1.cnf:
  New BitKeeper file ``mysql-test/std_data/ndb_config_mycnf1.cnf''