Clojurians Log v2

I'm now at the "this is the time to make any breaking changes before we do the real release" phase, and I've got some fairly foundational ones, the biggest one being "no more components": https://github.com/jacobobryant/biff/blob/v2.x/RELEASES/2.0.0-rc23.md > biff.core: components are now module lifecycle functions > biff.fx: state functions have additional arguments > biff.ring: defroute is removed > biff.ring: path only takes template strings, not route vectors > biff.graph: defresolver uses the new biff.fx format