EnterReplies and ExitReplies querryable/updatable from within slack

[connerk]

as a RHL Slack Member

I would like to be able to

1. get a list of all reply and exit messages Hackbot has cataloged
2. add or remove messages through a DM to Hackbot

so that I may contribute more easily to its upkeep

---

Hackbot has a brain build in reddis that is backed up routinely.
if we move the static js files EnterReplies.js and ExitReplies.js into the reddis object, we can then build scripts to alter them without the need for pull requests.

separate data from architecture, eh? ⚡️

---

relates to #60