Auto merge of #1959 - Turbo87:auto-import, r=locks

Use `ember-auto-import` to import npm modules

... instead of using the complicated `app.import()` API

Author: bors

ember-cli-build.js

@@ -36,24 +36,5 @@ module.exports = function(defaults) {
     },
   });
 
-  // Use `app.import` to add additional libraries to the generated
-  // output files.
-  //
-  // If you need to use different assets in different
-  // environments, specify an object as the first parameter. That
-  // object's keys should be the environment name and the values
-  // should be the asset to use in that environment.
-  //
-  // If the library that you are including contains AMD or ES6
-  // modules that you would like to import into your application
-  // please specify an object with the list of modules as keys
-  // along with the exports of each module as its value.
-  app.import('node_modules/timekeeper/lib/timekeeper.js', {
-    using: [{ transformation: 'cjs', as: 'timekeeper' }],
-  });
-  app.import('node_modules/semver/semver.js', {
-    using: [{ transformation: 'cjs', as: 'semver' }],
-  });
-
   return app.toTree();
 };