I think it's useful to be able to manually test the webhooks app to
make sure it's working corre...

With more detailed deployment instructions.

To document the environment variables required to get the app running
correctly.

This is a copy of the config as it exists on gofreerange.com, but
without any of the Trello API ...

Add a task to enable the Apache config after the first deploy. Because
of the `after apache:upda...

Add tasks to update the Apache config and restart the web server.

I removed the version constraints that meant we were tied to Ruby 1.8.7
and ran `bundle update`.

I'm hoping to get this running on Ruby 2.1.

I kept getting confused about which version of Ruby this master branch
works with.

It turns out that the Harmonia web hook is also fired when a card is marked
as done.

This makes it easier to see whether the app is working e.g. for monitoring.

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