The nyu_shibboleth provider callback isn't working so add some failing examples. The bug is due to the fact that the nyu_shibboleth provider name is a symbol, not a string, which is causing problems in saving the model and even getting user information from the OmniAuth::AuthHash.
Change nyu_shibboleth provider from a Symbol to a String to fix #1
Merge branch 'fix_nyu_shibboleth_provider'