Add Babel

This change set updates the applications build pipe line to include Babel.

This allows us to use the latest ES syntex and features (i.e. const/let,
arrow functions, etc) while still remaining compatible with older browsers

Gruntfile.js

@@ -135,6 +135,21 @@ module.exports = function (grunt) {
       }
     },
 
+    babel: {
+      options: {
+        sourceMap: true,
+        presets: ['env']
+      },
+      dist: {
+        files: [{
+          expand: true,
+          cwd: '.tmp/concat/scripts',
+          src: ['scripts.js'],
+          dest: '.tmp/concat/scripts'
+        }],
+      },
+    },
+
     // Make sure code styles are up to par and there are no obvious mistakes
     eslint: {
       options: {
@@ -352,6 +367,8 @@ module.exports = function (grunt) {
     }
   });
 
+  grunt.loadNpmTasks('grunt-babel');
+
   grunt.registerTask('serve', 'Compile then start a connect web server', function (target) {
     if (target === 'dist') {
       return grunt.task.run(['build', 'connect:dist:keepalive']);
@@ -389,6 +406,7 @@ module.exports = function (grunt) {
     'autoprefixer',
     'concat',
     'ngAnnotate',
+    'babel:dist',
     'copy:dist',
     'cssmin',
     'uglify',

package.json

@@ -54,12 +54,15 @@
   "devDependencies": {
     "angular-mocks": "~1.3.0",
     "angular-scenario": "~1.3.0",
+    "babel-core": "^6.26.3",
+    "babel-preset-env": "^1.7.0",
     "connect-modrewrite": "^0.8.2",
     "eslint": "^4.19.1",
     "eslint-config-airbnb-base": "^12.1.0",
     "eslint-plugin-import": "^2.12.0",
     "grunt": "^0.4.1",
     "grunt-autoprefixer": "^3.0.3",
+    "grunt-babel": "^7.0.0",
     "grunt-cli": "^0.1.13",
     "grunt-concurrent": "^2.1.0",
     "grunt-connect-proxy": "^0.2.0",