Removed old files.
Modified HedgeDetector.java to read from stdin
Wrote a draft file with a list of hedge cues in Spanish.
Added a directory for files related to crowdflower
Removed issues file
Moved test files to a new directory (test_files)
Moved python scripts to src directory. Wrote shell script
(xml_to_crowdflower.sh) to synthesize all conversion steps needed to
prepare data for crowdflower (xml -> csv -> tagged csv -> purged csv).