Cleanup todo

lib/static_handler.js

@@ -42,10 +42,7 @@ StaticHandler.prototype.handle = function(incPath, response) {
       });    
     }
     else {
-      // TODO 404 if not match regex
-      //winston.warn('file not found', { path: filePath });
-      //response.writeHead(404, { 'content-type': 'application/json' });
-      //response.end(JSON.stringify({ message: 'file not found' }));
+      // serve the default route so that pushstate can work if not found
       _this.handle('/', response);
     }
   });