code: function compileScss() {
    return new Promise((resolve, reject) => {
        sass.render({
          file: "sass/qooxdoo.scss",
          outFile: "build/qooxdoo.css"
        }, function(err, result) {
          if (err)
            reject(err);
          else
            resolve(result);
        });
      })
      .then(result => fs.writeFileAsync("build/qooxdoo.css", result.css, "utf8"));
  }
docs: Compiles SCSS into CSS
  
  @returns {Promise}