- Adds ES6 support via Babel
- Transforms existing JavaScript to UMD modules
- Adds module bundling via Browserify
- Existing JavaScript converted to UMD modules
- lib.js and leftandmain.js are bundled using browserify
- JavaScript minifying of bundles handed by gulp
This change will improve the performance of package-download-based installs of composer packages, by
excluding docs. It does this by exlcuding them from the output of the "git archive" command.
The suggestion came from https://github.com/composer/composer/issues/1750