Tweaks to double-verification for elastic hashing.
Cleanup of some tests.
Merge branch 'master' of github.com:VoltDB/voltdb
For ENG-5472, fix a crash caused by the cartographer witnessing partitions go away
For ENG-5472, make ops agents somewhat responsive at startup
Fix broken test organization.
Make hashinator more robust to elastic changes.
fix issue in isClusterKSafe in LeaderAppointer
Make a comment more explicit.
For ENG-5472, handle dummy responses not having schema for a  request
For ENG-5472, based on Ning's feedback update other place that might see nodes go missing
Merge pull request #935 from VoltDB/iscluster-k-safe-fix

fix issue in isClusterKSafe in LeaderAppointer
Merge pull request #933 from VoltDB/ENG-5472

Eng 5472 Fix issues found when a joining node crashes from OOM, make stats of joining nodes not block
Fix licensecheck.
Merge pull request #934 from VoltDB/ehash-tweaks-hugg

hashinator tweaks for elastic stuff
Merge branch 'master' into ENG-5459