ets-berkeley-edu/datacultures — pull request #92 by coyote (2014-10-06 23:14:40+00:00)
Title: Don't allow nil session or not-deep-enough user data to throw exception

[CYB-171](https://jira.ets.berkeley.edu/jira/browse/CYB-171)

Don't let unfilled in session or insufficient session data cause exception, just return nil.