Use peerDependencies
Add cylon and cylon-gpio back to dependencies
Stop using Utils#bind
Prefer #bind over self = this
Merge branch 'dev'

* dev:
  Prefer #bind over self = this
  Stop using Utils#bind
  Add cylon and cylon-gpio back to dependencies
  Use peerDependencies

Conflicts:
	package.json
Bump version to "0.13.0"