edx/edx-platform — pull request #842 by jbau (2013-08-30 20:58:16+00:00)
Title: Revamped + Enhanced Shibboleth support

* If a shib users type in their email on the regular login page,
redirects them to /shib-login/
* Modify student.views.accounts_login to handle redirects
generated by @login_required for courses that use shib for
access control.
Redirect those logins to /shib-login/?next=

@ormsbee @brianhw (whom I understand may be on vacation)