Update app.js

Passed event into handleSubmit, removed return false.

Author: jaylandro

examples/commentsBox/js/app.js

@@ -28,14 +28,13 @@ var CommentList = React.createClass({
 
 
 var CommentForm = React.createClass({
-  handleSubmit: function(e) {
-    e.preventDefault();
+  handleSubmit: function(event) {
+    event.preventDefault();
     var author = this.refs.author.getDOMNode().value.trim();
     var text = this.refs.text.getDOMNode().value.trim();
     this.props.onCommentSubmit({author: author, text: text});
     this.refs.author.getDOMNode().value = '';
     this.refs.text.getDOMNode().value = '';
-    return false;
   },
 
   render: function() {