v0.1.0, 2014-07-04 -- Initial release.
v0.2.0, 2014-07-11 -- Add new models for Proxy and User Agent
v0.2.2, 2014-10-10 -- Add state to LocalContent, clean methods. Fix the missing of management command.
v0.2.3, 2015-03-12 -- Improve package tests, add CI integration. Update Source model for easier to create object.
