0.9.0

Node.js support

This release brings node compatibility requested in #31. It turns out custom formatters work for node --inspect debugging as well.

Notable commits:

ff9f298 switch js/window to js/goog.global for Node compatibility
ec4f508 make :formatters feature available in node.js contexts
b21750c isolate decision about root js context into a single place

All new work: v0.8.3...v0.9.0