Remove react/addons and create className directly. Fixes #42

Author: STRML

lib/draggable.js

@@ -1,7 +1,7 @@
 'use strict';
 
 /** @jsx React.DOM */
-var React = require('react/addons');
+var React = require('react');
 var emptyFunction = require('react/lib/emptyFunction');
 var CX = React.addons.classSet;
 
@@ -446,11 +446,12 @@ module.exports = React.createClass({
 		if (this.state.dragging && !isNaN(this.props.zIndex)) {
 			style.zIndex = this.props.zIndex;
 		}
-		
-		var className = CX({
-			'react-draggable': true,
-			'react-draggable-dragging': this.state.dragging
-		});
+
+		var className = 'react-draggable';
+		if (this.state.dragging) {
+			className += ' react-draggable-dragging';
+		}
+
 		// Reuse the child provided
 		// This makes it flexible to use whatever element is wanted (div, ul, etc)
 		return React.addons.cloneWithProps(React.Children.only(this.props.children), {

webpack.config.js

@@ -7,7 +7,7 @@ module.exports = {
     libraryTarget: 'umd'
 	},
   externals: {
-    'react/addons': 'React'
+    'react': 'React'
   },
 	module: {
 		loaders: [