ENG-5654,ENG-5527,ENG-5526,ENG-5525,ENG-5524 Fixes.
Provisional fixes for 5 tickets.
Needs some more tests for what can be tested.
ENG-ENG-5654,ENG-5527,ENG-5526,ENG-5525,ENG-5524 Fix/improve broken test.
Merge remote-tracking branch 'origin/master' into it18grabbag
ENG-ENG-5654,ENG-5527,ENG-5526,ENG-5525,ENG-5524 Add pro-only sysproc warning test.
For ENG-5681, for broken pipe, don't log at error level
ENG-5527,ENG-5526,ENG-5525: Tie pro-ness and error message to StartAction instance.
Izzy feedback.
Merge remote-tracking branch 'origin/master' into it18grabbag
ENG-5527,ENG-5526,ENG-5525: Remove duplicate error message.
Merge pull request #1069 from VoltDB/ENG-5681

For ENG-5681, for broken pipe, don't log at error level
Merge remote-tracking branch 'origin/master' into it18grabbag
Merge pull request #1068 from VoltDB/it18grabbag

Fix 5 small tickets from DIST-18 mostly around community/pro errors.
Merge branch 'master' into ENG-5684
ENG-5684: Update docs comments and copyright