IDE format YamlTester
Remove printlns and otherwise cleanup all warnings in YamlTester and JMXInterpreter.
Format PSMYIT
More println removal
merge nathanlws: Reformat and cleanup YamlTester and JMXInterpreter

Merge pull request #925 from nathanlws/sql-layer/format-yamltester
https://github.com/FoundationDB/sql-layer/pull/925