Add more challenge reports
Version 0.2.0

* Major rewrite of event/plugin system, now uses Bluebird promises

* Plugin base: Crude but working "expect" system to resolve events

* Crawl plugin: Rewritten to be all promisified

* Crawl plugin: Retrieve game ID, server, version on player death and
save that info in database too

* Reduce coupling between bot and plugins a bit

* Add plugin options/channels support, kind of

* A bunch of other removals/fixes/breakages I probably forgot about
Format, comment, revise message regexes; add tests