v0.7.2

Note: with this release, PUBLIC_OAUTH_CLIENT_NAME becomes a required
environment variable, and npm run build fails if it is missing. If you do not
need OAuth2 authentication, just include a PUBLIC_OAUTH_CLIENT_NAME= line in
your env file.

• Made PUBLIC_OAUTH_CLIENT_NAME static (#376).
• Added help messages to user registration (#376).
• Made AUTH_COOKIE_DOMAIN optional (#376).
• Fixed hardcoded OAuth2 variable (#376).