
 - setuptoolify

 - directory mime stuff should go back in

   - separate set of classification, extraction, adapters

 - revamp utility for name->iface, and icon lookup

 - unit tests for _base.py apis

 - key normalization across extracted metadata

 - quality attribute on metadata extractors

 - coalescing metadata from each extraction adapter {maybe} or defer
   to highest quality extractor

 - mimetype module classifier
