Implement reliable children killing
Change kill-timeout to 30 secs
Always sleep, but shorter
Add basic test for killChildren
Remove unneeded pcntl_wait
Add test for forceful child process killing
Show some output on catching SIGTERM
Add error log entry when killing with SIGKILL
Fix ppid regexp, get ppid list before assertions
Include "argv" in kill-error-msg
Fix error metaInfo key
Merge pull request #1324 from njam/issue-1324

Implement reliable children-killing for CM_Process