ENG-6400 Added UPDATE to matviewbenchmark
ENG-6400 Removed trailing whitespaces
ENG-6400 Fixed issues from code review
ENG-6400 Fixed doc and class capitalization
Merge pull request #1413 from VoltDB/ENG-6400

ENG-6400 Added UPDATE to matviewbenchmark
perf charts: improve custom titling
export verifier: fix possible npe
Merge branch 'master' of github.com:VoltDB/voltdb into ENG-6451-inline-agg-hash