Setup Visual Studio Code devcontainer with symposion app and
postgresql database for easier local development.
Upgrade to Debian Bookworm for base container.
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: "???"
