Make Chart.platform importable

src/chart.js

@@ -8,7 +8,8 @@ Chart.helpers = require('./helpers/index');
 // @todo dispatch these helpers into appropriated helpers/helpers.* file and write unit tests!
 require('./core/core.helpers')(Chart);
 
-require('./platforms/platform')(Chart);
+Chart.platform = require('./platforms/platform');
+
 require('./core/core.element')(Chart);
 require('./core/core.plugin')(Chart);
 require('./core/core.animation')(Chart);

src/core/core.controller.js

@@ -1,10 +1,10 @@
 'use strict';
 
 var helpers = require('../helpers/index');
+var platform = require('../platforms/platform');
 
 module.exports = function(Chart) {
 	var plugins = Chart.plugins;
-	var platform = Chart.platform;
 
 	// Create a dictionary of chart types, to allow for extension of existing types
 	Chart.types = {};