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/regidesk" merged: "a8096d0" upstream: origin: "git@gitlab.com:LCA2018/registrasion-desk.git" branch: "master" commit: "a8096d0" git-subrepo: version: "0.3.1" origin: "???" commit: "???"