fixed erroneous describes
Merge pull request #295 from micheldumontier/affy_hotfix

Affy hotfix
Updated NDC parser for release 3 including dataset description
Merge pull request #296 from alisoncallahan/ndc-release3

Ndc release3
Started updating PharmGKB parser to release 3
Updated PharmGKB parser to release 3; pathways function is not up-to-date with latest pathways files
Merge pull request #298 from alisoncallahan/pharmgkb-release3

Pharmgkb release3