Minor Features
- Add php 7.0 to travis config.
- Add reference to node-which.
- Add a Why? section.
- Relax type-hint for ExecutableTester to any callable.
Bug Fixes
- Fix docblock.
Developer Changes
- Update dependencies.
- Remove code coverage checker from scrutinizer.
- Integrate with coveralls.
- Remove --dev: that's the default.
- Add docker/fig build.