Version 0.7.2 -- Surface forms fix and updated documentation v0.7.2

Version 0.7.1 -- Refactored internals and updated documentation

Py3-compatible 0.7 release

update README for pypi release.

Version 0.5.2 -- proper packaging

Version 0.5.1

Version 0.5. Supporting DBPedia Spotlight REST API Version 0.5