sorl/sorl-thumbnail — pull request #161 by Kelketek (2013-08-21 02:33:41+00:00)
Title: Fixes #154, updates tests.

Replaces simplejson with json when simplejson no longer exists (fixing #154). All tests pass from Django 1.3 up to the current dev branch.

The tests were updated to use a file that should be more standard-- the PNG reference page from the W3C.