WardrikChannel.Installations.Token (wardrik_channel v0.1.0-rc.1)

The single installation a channel's token: makes, in the workspace that token reaches.

slack: {WardrikSlack, token: "xoxb-...", owner: "acme", approvers: ["@maria"]}

Adding other installations returns an error. Forgetting one does nothing. Found by its owner, its workspace is "*".