Requirejs with babel environment

---

Use this in none compile environment.

Usage

Add config option in your config file.

config: {
  es6: {
    resolveModuleSource: function(source) {
      return 'es6!'+source;
    }
  }
}

After then, you can use this

requirejs(['es6!foobar'], function(foobar){
  foobar();
});