updated dist build process

gulpfile.helper.js

@@ -32,10 +32,10 @@ module.exports = function (gulp, helperOptions) {
     modules: 'ignore',
     experimental: true
   }
-  if (options.regenerator) {
-    files.specs = helperOptions.polyfills.concat(files.specs)
-  } else {
+  if (!options.regenerator) {
     babelOptions.blacklist = 'regenerator'
+  } else {
+    files.dist = [files.dist].concat(helperOptions.polyfills)
   }
 
   gulp.task('dist', function () {
@@ -54,7 +54,7 @@ module.exports = function (gulp, helperOptions) {
       .pipe(source(options.targetName))
       .pipe(buffer())
       .pipe($.if(options.debug, $.sourcemaps.init({loadMaps: true})))
-      .pipe($.if(!options.debug && options.regenerator, $.babel(babelOptions)))
+      .pipe($.if(true, $.babel(babelOptions)))
       .pipe($.if(!options.debug && options.regenerator, $.uglify()))
       .pipe($.if(options.debug, $.sourcemaps.write('.')))
       .pipe(gulp.dest('./dist/'))

gulpfile.js

@@ -48,7 +48,7 @@ var $ = require('gulp-load-plugins')()
 var runSequence = require('run-sequence').use(gulp)
 
 require('./gulpfile.helper.js')(gulp, {
-  polyfills: [],
+  polyfills: ['node_modules/gulp-babel/node_modules/babel-core/node_modules/regenerator/runtime.js'],
   entry: './src/y.js',
   targetName: 'y.js',
   moduleName: 'yjs',