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.
Also update vendored_requirements to make sure we pull this in.
subrepo:
subdir: "vendor/registripe"
merged: "9fc3645"
upstream:
origin: "git@gitlab.com:tchaypo/registrasion-stripe.git"
branch: "lca2018"
commit: "9fc3645"
git-subrepo:
version: "0.3.1"
origin: "???"
commit: "???"