nltk/nltk — pull request #557 by jskda (2013-12-03 04:39:30+00:00)
Title: Pull request.json tags, cf https://github.com/nltk/nltk/issues/540

Removed any yaml serialization schemes, converted `nltk.tag.sequential` to using a json serialization scheme, by using `nltk.jsontags` as a helper class.