Add slack integration module to paraply

[snorremd]

It would be cool to have Slack-integration for Paraply. Essentially the paraply node application would contact the Slack service upon receiving new events and post them in the specified room.

The integration part should be fairly trivial. The hard part, as the server is designed now, is determining whether the event being added to the db is actually new, or just an update.

Another possibility is finishing the api and create a slack command to list the first upcoming events in the chat room.

[snorremd]

Any updates on this @Torthu ?

[Torthu]

Not yet, @snorremd. We still need to solve the updated vs new problem.