Fix /tmp priv issue with license check
Add new exception class
tweaked messages displayed
Updates per jhugg review
Merge pull request #709 from VoltDB/ENG-4990

Eng 4990 - When /tmp is not writeable, return a better message during license verification.
fix-indexcount: IndexCount junit tests failed because of using the sortDirection to determine whether this is a reverse scan; add a new function in IndexScanPlanNode isReverseScan() to fix it.
Clean up some imports and shorten the reverseScan check logic
Merge pull request #721 from VoltDB/fix-indexcount

fix-indexcount: IndexCount junit tests failed because of using the sortD...
Merge branch 'master' into ENG-4792-compound-index-lite
Merge branch 'ENG-4792-compound-index-lite' of github.com:VoltDB/voltdb into ENG-4792-compound-index-lite