Updated tests for Courses Controller
Update look, remove index.html, added home page
Updated OmniAuth to use OpenID

Successfully uses OpenID to open to Google App page login for the
mymail.mines.edu domain. But OpenID is not activated on the domain so it
isn't possible to authenticate yet.
OAuth2 implemented to Google accounts

Create OAuth2 implementation using the omniauth-google-oauth2 gem.
Currently works for all Google domains, including Google Apps accounts.
Fixed double yield block from bad rebase
Completed OAuth2 authentication

Implement OAuth2 authentication and authorization.
Needs access to user's profile information and email.
User can login with any Google account currently.
Screen changes to show user name after login.
Nicer colors added to topbar

Add Sign Out button for when logged in.