This needs a much better way of working.

Only include the first line. Reverse order of commits so they're
chronological.

[Pun very much intended]

Have one route for all hooks that delegates to the appropriate
service. Services yield events that are then actioned somehow
(for now in a big ugly method).

This will need to change when the config is rethought a little.

This allows the IDE to run it as a flask application, rather
than just executing script fully.

Doesn't really do much of use yet.