reciprocity/ggrc-core — pull request #1206 by SilasX (2014-04-03 23:05:03+00:00)
Title: Ensure correct Clause vs Section setting for model_class.

Per [68833532](https://www.pivotaltracker.com/story/show/68833532). Problem was traced to the row converter's setting of `model_class`. Now uses derived classes (`ClauseRowConverter` and `ClausesConverer`) to ensure correct setting for that attribute.