ENG-6675 display unused index on the SchemaReport
ENG-6675 changed Uniquness column name to Attributes
ENG-6675 Changed Unused label color to red
demoted log came back after 4.4.x merge upto master
Merge pull request #1555 from VoltDB/demoted-log-came-back

demoted log came back after 4.4.x merge upto master
Merge pull request #1552 from VoltDB/ENG-6675-SchemaReport-UnusedIndexIndicator

Eng 6675 schema report unused index indicator
Merge pull request #1558 from VoltDB/ENG-6591-partial-aggregate-before-refactor

Eng 6591 partial aggregate before refactor
Merge branch 'master' of github.com:VoltDB/voltdb into ENG-6591-partial-aggregate