ENG-7343: download deployment and tests
Merge remote-tracking branch 'origin/master' into ENG-7343-download-deployment

Conflicts:
	src/frontend/org/voltdb/utils/HTTPAdminListener.java
ENG-7343: review changes and refactor.
ENG-7343: review changes.
Merge pull request #1883 from VoltDB/ENG-7343-download-deployment

Eng 7343 download deployment
Merge remote-tracking branch 'upstream/master'