ets-berkeley-edu/datacultures — pull request #209 by coyote (2014-11-27 00:21:57+00:00)
Title: CYB-348 author_canvas_user_id & created_at should be integers instead of strings

Numerizes those fields in comments
[CYB-348](https://jira.ets.berkeley.edu/jira/browse/CYB-348)