Service Window: migration

It’s been a while since we last updated Phabricator, and it’s been a while since the overall system that runs was paid attention to.

Suffice it to say that it’s time to upgrade the system. We’ve meanwhile packaged Phabricator and its dependencies, stripped off some superfluous external dependencies that it shipped, and fixed some issues that annoyed some of our users.

This is going to happen on Friday afternoon — that’s September 23rd.