v0.1.0, 2012-12-06 -- Initial release.
v0.1.1, 2012-12-06 -- Bugfix in constructor.
v0.1.2, 2012-12-06 -- Adding background worker to prevent blocking while data is being fetched.
v0.1.3, 2013-05014 -- Upgrading to requests v1.2.0