Asana lib: improved Asana lib

Put Run() inside hipbot.go, instead of plotbot/main.go

Hipchatv2: simplified error reporting, it's just an interface{}

Standup: properly namespace Redis keys

Storm: took out the seenStormTasks.txt, and use the "Calmed" tags instead.
TODO: still need to monitor for the "Calmed" tag on that task, and keep the
Storm active, even if we have a taker.

Storm: improved the flow.. now based on Asana polling.
Implemented Calm watcher.. as well as Taker watcher.. Two separate things.