Update npm dependencies

Also, remove useless banner.txt

banner.txt

@@ -1,10 +0,0 @@
-/**
- * @license
- * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
- * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
- * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
- * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
- * Code distributed by Google as part of the polymer project is also
- * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
- */
-// @version <%= pkg.version %>

gulpfile.js

@@ -53,7 +53,7 @@ function closurify(sourceName, fileName) {
     compilation_level: 'ADVANCED',
     language_in: 'ES6_STRICT',
     language_out: 'ES5_STRICT',
-    output_wrapper: '(function(){\n%output%\n}).call(self)',
+    isolation_mode: 'IIFE',
     assume_function_wrapper: true,
     js_output_file: `${fileName}.js`,
     warning_level: 'VERBOSE',
@@ -64,23 +64,9 @@ function closurify(sourceName, fileName) {
       'bower_components/html-imports/externs/html-imports.js',
       'bower_components/shadycss/externs/shadycss-externs.js',
       'bower_components/shadydom/externs/shadydom.js'
-    ],
+    ]
-    // entry_point: `/entrypoints/${sourceName}-index.js`,
-    // dependency_mode: 'STRICT'
   };
 
-  //   const closureSources = [
-  //   'src/*.js',
-  //   'entrypoints/*.js',
-  //   'bower_components/custom-elements/src/**/*.js',
-  //   'bower_components/html-imports/src/*.js',
-  //   'bower_components/es6-promise/dist/es6-promise.auto.min.js',
-  //   'bower_components/webcomponents-platform/*.js',
-  //   'bower_components/shadycss/{src,entrypoints}/*.js',
-  //   'bower_components/shadydom/src/*.js',
-  //   'bower_components/template/*.js'
-  // ];
-
   const rollupOptions = {
     entry: `entrypoints/${sourceName}-index.js`,
     format: 'iife',
@@ -96,12 +82,6 @@ function closurify(sourceName, fileName) {
   .pipe(closure(closureOptions))
   .pipe(sourcemaps.write('.'))
   .pipe(gulp.dest('.'));
-
-  // return gulp.src(sources, {base: './'})
-  // .pipe(sourcemaps.init({loadMaps: true}))
-  // .pipe(closure(closureOptions))
-  // .pipe(sourcemaps.write('.'))
-  // .pipe(gulp.dest('.'));
 }
 
 gulp.task('debugify-hi', () => {
@@ -168,10 +148,9 @@ gulp.task('debugify-ce-es5-adapter', () => {
 
 gulp.task('refresh-bower', () => {
   return del('bower_components').then(() => {
-    let resolve, reject;
+    return new Promise((resolve, reject) => {
-    let p = new Promise((res, rej) => {resolve = res; reject = rej});
+      bower.commands.install().on('end', () => resolve()).on('error', (e) => reject(e));
-    bower.commands.install().on('end', () => resolve()).on('error', (e) => reject(e));
+    });
-    return p;
   });
 });
 

package.json

@@ -33,21 +33,21 @@
     "@webcomponents/shadydom": "^1.0.0",
     "@webcomponents/template": "^1.0.0",
     "@webcomponents/webcomponents-platform": "^1.0.0",
-    "babel-preset-babili": "0.0.12",
+    "babel-preset-babili": "^0.1.4",
     "bower": "^1.8.0",
-    "del": "^2.2.2",
+    "del": "^3.0.0",
-    "es6-promise": "^4.1.0",
+    "es6-promise": "^4.1.1",
     "eslint": "^3.16.1",
-    "google-closure-compiler": "^20170409.0.0",
+    "google-closure-compiler": "^20170626.0.0",
     "gulp": "^3.8.8",
     "gulp-rename": "^1.2.2",
     "gulp-sourcemaps": "^2.4.1",
     "rollup-plugin-babel": "^2.7.1",
-    "rollup-stream": "^1.14.0",
+    "rollup-stream": "^1.23.1",
-    "run-sequence": "^1.2.2",
+    "run-sequence": "^2.0.0",
     "vinyl-buffer": "^1.0.0",
     "vinyl-source-stream": "^1.1.0",
-    "web-component-tester": "6.0.0-prerelease.9"
+    "web-component-tester": "^6.0.0"
   },
   "publishConfig": {
     "access": "public"