2.0 release

The changes in this release are really too big to list, essentially, it's a rewrite of bumblebee-status, with a focus on greater extensibility and better code testing coverage. Also, the documentation is much nicer now, I hope :)

As such, I unfortunately cannot drag up a full list of changes (modules, themes, fixes) - apologies for everyone who goes unmentioned!

Also, this release probably contains numerous bugs and regressions - sorry for that as well!