ENG-4813 error message for CSVloader MP procedures

Reviewed by ajgent and jpiekos.
Merge branch 'master' of github.com:VoltDB/voltdb
remove trailing whitespaces
Merge pull request #559 from VoltDB/temp

Remove trailing whitespaces
new SQL function SINCE_EPOCH for VoltDB only, this can be an example for the following new SQL funtions
Merge pull request #560 from jxchinaren/eng4695

new SQL function SINCE_EPOCH for VoltDB only, this can be an example for...
Replace tabs with whitespaces following Volt's Coding Style
Reslove the type conversion error for Ubuntu and CentOS
Merge pull request #561 from VoltDB/ENG-4695

Eng 4695. Passed Jenkins.
Merge pull request #565 from VoltDB/master

branch refresh from master -- mostly to pick up licensecheck restoration