Fixed unittest failure in LogLevelTest. Added config dir with logback
config file that set logging to stdout and level to Error.  Modified
unittest target used by travis-ci to use new logback config file to
reduce clutter in unittest output.  Commented out superfluous
System.println's from various unit tests to also reduce clutter.
Merge pull request #98 from soupwizard/master

Fixed unittest failure, cleaned up unit test output