Create CLI tool to help first-time setup

[AvianFlu]

It would be useful for a wizard to start that asked for things like the bot's name, the administrator's IRC nick, and other basic options if only the default config file is detected.

[indexzero]

+1 The features required for this have been requested for node-prompt. That is, some kind of workflow or branching structure for a set of ordered prompts. With something like this in node-prompt it would be pretty trivial to implement this.