Fix auth.get_model.

Signed-off-by: Raphaël Barrois <raphael.barrois@polytechnique.org>
Fix perms handling.

Signed-off-by: Raphaël Barrois <raphael.barrois@polytechnique.org>
Fix is_staff/is_superuser.

Signed-off-by: Raphaël Barrois <raphael.barrois@polytechnique.org>
Fix reading settings.PROFILE_CLASS.

Signed-off-by: Raphaël Barrois <raphael.barrois@polytechnique.org>
Fix unicode/bytes in challenge.

Signed-off-by: Raphaël Barrois <raphael.barrois@polytechnique.org>
Remove useless login test.

Signed-off-by: Raphaël Barrois <raphael.barrois@polytechnique.org>
Fix login_begin_view.

Signed-off-by: Raphaël Barrois <raphael.barrois@polytechnique.org>
Add devsite.

Signed-off-by: Raphaël Barrois <raphael.barrois@polytechnique.org>