Merge pull request #67 in CATS/pyclowder2 from BD-2097-simple-extractor-on-file-extraction-e.g-wordcount to develop
* commit '09b5a3e9cc0466862a23513591672fa497c8c2b1':
simple extractor onbuild
Removed invalid code in Dockerfile.
Changed print statement to logger debug.
1. Moved simple extractor out of pyclowder as part of sample extractors. 2. Started adding README for simple extractor 3. Updated docker file for simple extractor
Removed extra blank line that was causing build failure.
simple extractor on file with wordcount example