CLI that walks user through config and link generation

[glynnw]

We should consider making a cli that populates the config with values; walks users through obtaining a token and ids for the bot; and generates the link to add the bot.

[joker314]

I'm working on the CLI. I'm making the decision to change defaults.json like this:

- "adminTransparency": "true"
+ "adminTransparency": true

So, instead of a string, a Boolean is used. Looking through bot.js, it looks like "false" would've been considered true anyway.