- Various fixes for running mysql-test-run.pl on ActiveState perl
   for windows. Reading it's source in win32/win32.c helps...


mysql-test/lib/mtr_process.pl:
  Use "real_pid" when killing the process on ActiveState perl for windows
  Wait blocking for the pseudo pid to exit.
  Change "sleep_until_file_created" to return 1 when pidfile has been
  created - this should avoid early wakeup if $pid was 0
mysql-test/lib/mtr_timer.pl:
  Wake timer process with signal 15 to avoid to avoid resource leak
  on ActiveState perl for windows.
  Install signal handler in timer process to  exit gracefully
mysql-test/mysql-test-run.pl:
  Read "real_pid" of process from pid_file - to be used when killing the
  process on ActiveState perl
  Drop the --console option to mysqld
  Pass "real_pid" to mtr_check_stop_server so it can select to use it
  Correct two argument declarations