Add some default configuration key used with the port to flask-openid
Add the login template where the user can enter his/her openid
Update the requirements
Contributing just requires an openid account and some modifications wrt the submitter name

The submitter is the user that logged in and is uploading the artwork. If it comes from
Fedora, then it's a username, otherwise it's the user email which is most likely the most
stable information we can retrieve from an OpenID server.
Fill in the form only via the information provided by the user, otherwise let it be
Update the master template to adjust when a user is logged in
Add a login_required decorator and adjust the other ones for user not logging in via FAS
Add the different login options
With the port to flask-openid we need to make sure g.auth exists for the tests
We must be sure g.auth exists before checking g.auth.logged_in otherwise the tests fail
When setting a user, set g.auth as well and keep g.auth.logged_in as False as the user is using FAS
Adjust the unit-tests to the new login and logout pages
Add missing closing bracket
Add a context to test w/ regular OpenID user
Let's not crash if there is no g.fas_user but a g.auth
Test uploading a file under a regular OpenID user
Fix information message when the user tries to access the admin part w/o using a FAS login
Add tests to check the nuancier_admin_required decorator with a regular OpenID login
Remove code that we do not use
Some piece we cannot cover in our tests