For ENG-5416, make HTTP client interface use external interface
For ENG-5489, fix unsafe publication of stats tables
ENG-5494. Add license back into enterprise kit.
rpm package builder: make the file layout identical to the debian package
(cherry picked from commit 4b67e02a30b0e0708d3c7e0764d712f86ee121c4)
Merge pull request #944 from VoltDB/ENG-5489

For ENG-5489, fix unsafe publication of stats tables
Merge branch 'release-3.7.x'
Merge branch 'master' into ENG-5360