FredKSchott/CoVim — pull request #36 by Rogdham (2013-05-17 10:19:21+00:00)
Title: Replace pickle by json. Fixes security flaw #25.

Breaks compatibility with prior versions.

As you mentioned in #25, json returns `unicode` object, so I just transform them back to `str` when using `.load`.
There is no need to do a similar thing for `.dumps` since it defaults to encoding with utf-8.