Do not attach Radio unconditionally to Backbone and remove noConflict

src/backbone.radio.js

@@ -1,21 +1,10 @@
 import _ from 'underscore';
 import Backbone from 'backbone';
 
-var previousRadio = Backbone.Radio;
-
-var Radio = Backbone.Radio = {};
+var Radio = {};
 
 Radio.VERSION = '<%= version %>';
 
-// This allows you to run multiple instances of Radio on the same
-// webapp. After loading the new version, call `noConflict()` to
-// get a reference to it. At the same time the old version will be
-// returned to Backbone.Radio.
-Radio.noConflict = function() {
-  Backbone.Radio = previousRadio;
-  return this;
-};
-
 // Whether or not we're in DEBUG mode or not. DEBUG mode helps you
 // get around the issues of lack of warnings when events are mis-typed.
 Radio.DEBUG = false;

test/setup/setup.js

@@ -3,7 +3,7 @@ module.exports = function(root) {
   global.Backbone = require('backbone');
   global.expect = global.chai.expect;
   global.slice = Array.prototype.slice;
-  global.Radio = require('../../src/backbone.radio');
+  global.Backbone.Radio = global.Radio = require('../../src/backbone.radio').default;
 
   beforeEach(function() {
     this.sinon = global.sinon.sandbox.create();

test/unit/form.js

@@ -7,10 +7,6 @@ describe('When Radio is attached to your application', function() {
     expect(Backbone.Radio.VERSION).to.exist;
   });
 
-  it('should have a noConflict method', function() {
-    expect(Backbone.Radio.noConflict).to.exist;
-  });
-
   it('should have the channel method', function() {
     expect(Backbone.Radio.channel).to.exist;
   });