cTakes_XML_to_JSON.py: Takes the XML output of a cTakes pipeline and converts it to JSON

To run:
Set 'CASE' in cTakes_XML_to_JSON.py to the case.
Set JSON_OUT to the flare.json in the directory that contains the visualization package (should be set correctly already - e.g. ./CollapsableDendrogram/flare.json).
./cTakes_XML_to_JSON.py
cd (visualization scheme) (e.g. cd ./CollapsableDendrogram/ - this is the version I recommend currently as it gives the most compact view of large data)
python -m SimpleHTTPServer &
Open browser, localhost:8000/

To Do:
Make recursive through a directory set from command line args.
More abstract reading and manipulation of input data structure and output data structure.
More visualization schemes.