TESTRUN Add tools/testrun for multi-host testing.
TESTRUN FIx README.
Disambiguate the meanings of the VoltXML name "type".
Disambiguate the 2 meanings of the VoltXML name "id".
TESTRUN Addressed review concerns and fixed a couple of bugs.
Disambiguate the meanings of the VoltXML name "operation", distinguish: "aggregation", "orderby", and "simplecolumn". Drop unused "bool"
TESTRUN Got rid of recover use of catalog.
Merge pull request #349 from VoltDB/notest-testrun

TESTRUN Add tools/testrun for multi-host testing.
Fix for ENG-4064, log message not protected by predicate
Merge pull request #351 from VoltDB/ENG-4064

Fix for ENG-4064, log message not protected by predicate
ENG-4006: remove race condition from txnid-selfcheck2 startup.
Merge pull request #350 from VoltDB/ENG-3752-precursor

3 commits, each clarifying the usage of a different getVoltXML element name.
Merge branch 'master' into sftp-feature