BERJON Matthieu authored Nov 07, 2018 and BAIRE Anthony committed Dec 06, 2018

I added a mixin that checks if the user has accepted the latest ToS
version. If not the user is redirected to the ToS validation view. Once
accepted the user is redirected to the page he asked first.

I updated all the `login required` views by adding this new mixin.
One major issue of this code that the redirection argument passed to the
ToS validation view is the url name which is not a good practice I
think. A better case would to use the path but I wasn't able to write
the right regex in the url dispatcher.

Another issue is that the user won't be redirected at login or sign up
to the ToS validation view. This should be handled in the `adapter.py`
file.

Signed-off-by: Matthieu Berjon <matthieu.berjon@inria.fr>