Use Babel's UMD wrapper

* Will work the same as the current UMD wrapper after Babel 6.6.0

Author: clayreimann

.babelrc

@@ -0,0 +1,10 @@
+{
+  "presets": ["es2015"],
+  "plugins": [
+     ["transform-es2015-modules-umd", {
+        "globals": {
+           "es6-promise": "Promise"
+        }
+     }]
+ ]
+}

.gitignore

@@ -1,6 +1,9 @@
 .DS_Store
 .idea
 node_modules/
-npm-debug.log
 coverage/
+dist/*.js
+dist/*.map
+
+npm-debug.log
 sauce.json

dist/github.bundle.min.js

@@ -13,6 +13,7 @@ var del = require('del');
 var stylish = require('gulp-jscs-stylish');
 var path = require('path');
 var karma = require('karma');
+var babel = require('gulp-babel');
 
 function runTests(singleRun, isCI, done) {
    var reporters = ['mocha'];
@@ -107,34 +108,47 @@ gulp.task('clean', function () {
 });
 
 gulp.task('build', function() {
-   var browserifyInstance = browserify({
+   var bundler = browserify({
       debug: true,
       entries: 'src/github.js',
       standalone: 'Github'
    });
 
-   browserifyInstance
+   bundler
+      .transform('babelify')
       .bundle()
       .pipe(source('github.js'))
       .pipe(buffer())
       .pipe(sourcemaps.init({
          loadMaps: true
       }))
-            .pipe(uglify())
+      .pipe(uglify())
       .pipe(rename({
          extname: '.bundle.min.js'
       }))
       .pipe(sourcemaps.write('.'))
-      .pipe(gulp.dest('dist'));
+      .pipe(gulp.dest('dist'))
+      ;
+
+   var babeled = gulp.src('src/github.js')
+      .pipe(babel())
+      ;
+
+   babeled
+      .pipe(sourcemaps.init())
+      .pipe(sourcemaps.write('.'))
+      .pipe(gulp.dest('dist'))
+      ;
 
-   return gulp.src('src/github.js')
+   return babeled
       .pipe(sourcemaps.init())
       .pipe(rename({
          extname: '.min.js'
       }))
       .pipe(uglify())
       .pipe(sourcemaps.write('.'))
-      .pipe(gulp.dest('dist'));
+      .pipe(gulp.dest('dist'))
+      ;
 });
 
 gulp.task('default', ['clean'], function() {

dist/github.bundle.min.js.map

@@ -10,12 +10,16 @@
     "utf8": "^2.1.1"
   },
   "devDependencies": {
+    "babel-plugin-transform-es2015-modules-umd": "^6.5.0",
+    "babel-preset-es2015": "^6.5.0",
+    "babelify": "^7.2.0",
     "browserify": "^13.0.0",
     "browserify-istanbul": "^0.2.1",
     "chai": "^3.4.1",
     "codecov": "^1.0.1",
     "del": "^2.2.0",
     "gulp": "^3.9.0",
+    "gulp-babel": "^6.1.2",
     "gulp-jscs": "^3.0.2",
     "gulp-jscs-stylish": "^1.3.0",
     "gulp-jshint": "^2.0.0",