Merge pull request #67 in CATS/pyclowder2 from BD-2097-simple-extractor-on-file-extraction-e.g-wordcount to develop
* commit '09b5a3e9cc0466862a23513591672fa497c8c2b1':
Update sample-extractors/simple-extractor/README.md
simple extractor onbuild
Removed init.py
Removed invalid code in Dockerfile.
Update sample-extractors/simple-extractor/__init__.py
Changed print statement to logger debug.
Fixed Dockerfile.
Updated gitignore
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
