Distribute Slackbot

[hectron]

We need to investigate how to distribute this Slackbot, and how installations are going to work.

We should be able to provide people with a link to the Slackbot which allows them to install the Slackbot into their
workspace.

[hectron]

Slack's documentation regarding distribution states that the best way to go
about distributing an application to multiple workspaces is to use an OAuth 2.0 authentication flow.

Some follow up questions about this:

• How do we store the permanent access tokens generated by this?
  • New route to handle receiving the tokens?
• Do we need to handle revocations (people uninstalling the application)?