Added support in hipchatv2 for the "/user" endpoint which lists users.
Everything is a package now, except "plotbot" which we build and brings
things along with it.

Plugins are not packages too.

NOTE: tweak your config, "hipchat_api_token" now goes in "Hipchat" config
section.

Added Redis as storage, explosed through "conn := bot.RedisPool.Get()".
Make sure you call "defer conn.Close()".

Now keeps track of a list of users, updated each 3 minutes.. you can
get with bot.GetUser() and it'll search a bunch of fields..

NEW standup meetings plugin, with serialization.  TODO: implement web
interface component.