Includes all changes from 6.4.0
- drop support for webpack 1 (#407) (Daniel Tschinder)
- Use preset-env (#406) (Daniel Tschinder)
- Correctly run yarn commands (Daniel Tschinder)
- Bump loader-utils and use getOptions (#391) (Brian Ng)
- Update README.md for webpack 2 (#402) (Sid Raval)
