Added MIT license hopefully as per mailing list discussion.
Merge pull request #194 from jeremycarroll/with-license

Added MIT license
Update README.md

slight update
Fixed (line 392): removed premature closing parenthesis in chembl quad instantiation ~Paul Rigor
Merge pull request #320 from theoryno3/patch-1

Fixed (line 392): removed premature closing parenthesis in chembl quad i...