Commands:

:r -- register via Register(email)

:d [n] file -- dump backlog of last 'n' msgs to a file 'file'

:? to list commands

Features:

* read $home/lib/discord.face for profile picture (or just face?)

* delete disco.ndb on failure to log in for 400 bad request: password does not match

* runtime verify proper permissions -rw------- 0600 for discord.ndb

* [done] if ``` entered, allow multi-line message (composition)

* flag for larger backlog loading

* CAPTCHA solution -- http-proxy is a bad one

* [done-ish] fix pm's
	* when opening a pm, drops back to channel dialogue

* [done] aux/statusmsg backgrounds and doesn't steal input

* fix :m not displaying more than loaded backlog

* fix ctrl+d not closing out cleanly

* add [b] go back to pm's menu from within pm's

* [done] fix :n printing to chat