OfficeHours/ims-lti — pull request #2 by Tape (2014-01-23 22:48:04+00:00)
Title: Handle urn:lti:instrole:ims/lis/ prefix

The roles parameter can sometimes contain the prefix `urn:lti:instrole:ims/lis/`, this code should help take that into consideration.

See the coding page [here](https://www.edu-apps.org/code.html) for more details.