mysql-test/include/have_ndb.inc:
  Remove the "exec test" and instead use the portable way to
  check an environment variable using "eval select". The value of 
  $NDB_STATUS_OK will this be replace by mysqltest and the query 
  "select "YES" and ndb_status_ok" will be sent to the server and back.
mysql-test/mysql-test-run.pl:
  Move initializetion of NDB_STATUS_OK and only do it once in init part of scripot. This will make it possible to  set 
  it to NO if we detect that cluster can't be started.