Roadmap and changelog updates
QElement.description() --> QElement.toString()
Move Object.keys shim into shim.js
shim.js uses more 'natural' naming system
Changelog cleanup
INTEGRATE: QElement and shim.js cleanup

* dev:
  Changelog cleanup
  shim.js uses more 'natural' naming system
  Move Object.keys shim into shim.js
  QElement.description() --> QElement.toString()
  Roadmap and changelog updates