ENG-5575: Log the snapshot request response if retry fails.
Experiment with doing ZK reads locally without agreement
Fix failure to fall through to default handling when short circuit is not appropriate.
Remove unused main thread
Remove duplicate if/else block
Merge pull request #1005 from VoltDB/zk_shortcircuit

Zk shortcircuit, do reads locally where possible
Merge pull request #1004 from VoltDB/ENG-5575

ENG-5575: Log the snapshot request response if retry fails.
For ENG-5588, take a stab at removing the check that is only supposed to run at startup
Merge pull request #1012 from VoltDB/ENG-5588

Eng 5588 Clean up random unused thread and fix issue with leader appointer failover startup checks being applied at runtime
Merge remote-tracking branch 'origin/master' into ENG-5502-client-java6