--parallel hasn't been specified
Add lib/My/SysInfo.pm

  Print the scalar value of $completed, not the array values

Use opt_start_timeout also for ndb
Remove the .result files generated by 'check_testcase'

Remove .err and .result files produced by check-testcase and check-warnings

check processes has been started

and force is on

Remove mtr_report_test_failed

oportunity to check if any other process fails during this.
Add possiblitiy to store "user_data" in a Safeprocess
Add function to get pid from a SafeProcess

Fix comments

datadir can be saved in case of constantly failing servers
Remove datadirs each time all servers have been stopped thus limiting
the size of vardir.
The datadirs of failed tests have been saved and that should be
enough to diagnose any failures

early versions of 5.1 and 5.0
Fix usage instruction of defaults_extra_file

Just treat var/tmp and $opt_tmndir that might be different or same. 

since it's used by the check

Don't allow unix socket path to be truncated 

Fix warnings

after expected crash server restart. The test timeout process was killed
not restarted.

No more string matching