Verbose SafeProcess.pm 


mysql-test/mysql-test-run.pl:
  Cleanup how script find ndb binaries and paths
  Remove "executable_setup_failed" code, i.e either we have ndb support or we don't
  Remove ndb_extra_test, not used by any test. If there is a need for that, just 
  create a new suite
mysql-test/lib/My/Find.pm:
  Add possibility to use my_find_bin for a binary that is not required
mysql-test/lib/My/SafeProcess.pm:
  Add verbose printous that can be turned on
  Wait on process also if start_kill failed
  Turn verbose on for windows
mysql-test/lib/My/SafeProcess/safe_kill_win.cc:
  Extend sleep from 0 to 100
mysql-test/lib/mtr_cases.pm:
  Remove ndb_extra
mysql-test/suite/rpl_ndb/t/rpl_ndb_circular.test:
  Extra checks should be for Last_IO_Errno