broccoli-6to5-transpiler (deprecated, part of broccoli-babel-transpiler)

This package is deprecated. It was the Broccoli plugin for transpiling ES6 to ES5 using 6to5 (the original name of Babel). The project has been renamed and migrated to `broccoli-babel-transpiler`, which is actively maintained with the latest version v8.0.2 (January 2025). The current package (broccoli-6to5-transpiler) is archived and should not be used. Instead, use `broccoli-babel-transpiler` with `@babel/core` as a peer dependency. Key differentiator: it integrates Babel into the Broccoli build system, supporting Babel plugins and presets, but this deprecated version is incompatible with modern Babel (v7+).