redding/deas — pull request #114 by kellyredding (2013-11-26 16:23:46+00:00)
Title: don't stringify test runner file param values

These come in as actual objects in rack so we need to preserve this
in the test runner params.

@jcredding ready for review. This is a "white list" approach so we will need to add new file types to white list as we come across or use them - heads up.