Upgrade site and modules to Django 2.2. Remove and replace obsolete functionality with current equivalents. Update requirements to latest versions where possible. Remove unused dependencies.
subrepo: subdir: "vendor/registrasion" merged: "c1e194a" upstream: origin: "git@gitlab.com:tchaypo/registrasion.git" branch: "lca2018" commit: "c1e194a" git-subrepo: version: "0.3.1" origin: "???" commit: "???"