v4.0.0
- Changed engines from Node.js `>=0.8` to `>=4`, as supporting versions that we cannot test against is too fragile
- We are still generating the same code, using the `ES5` compile target, so perhaps it still works, however we cannot and will not guarantee compatibility for Node.js versions earlier than v4
- Updated dependencies, [base files](https://github.com/bevry/base), and [editions](https://editions.bevry.me) using [boundation](https://github.com/bevry/boundation)