Merge pull request #12 from satra/master

moving last script
first shot at a generic csv2prov converter
enh: refined csv2prov to store row-based entities
enh: csv to prov graph conversion and script
fix: typos
fix: one more typo
fix: remove unnecessary output dir
enh: updated adhd200 csv to prov to rdf conversion with federated query
enh: added a pandas plot
enh: added provenance info to csv output and an example
Merge pull request #13 from satra/enh/csv2prov

excellent, thanks for cleaning this up @satra
Update README.md
Update README.md