Small cleanups, moving to slf4j instead of log4j.
Merge pull request #1 from boorad/master

resolved merge conflict, and UI changes from this afternoon
Merge branch 'master' of github.com:tdunning/mapr-spout-test
Small additional log changes.
Switched to unreliable topology to avoid acking problem.  Allow FlushRankingsBolt to create directories.  More switches to slf4j.  Undid the /in stuff.  Added log4j props.
Restored consistency between FILETYPE, props file and file pattern again.
Adjusted log level, killed a print, rearranged code for readability.
More SLF4j changes and adjustment to log levels.
Merge pull request #4 from tdunning/master

Working version