added event loop monitor

services/web/app/coffee/infrastructure/Server.coffee

@@ -25,6 +25,8 @@ Modules = require "./Modules"
 metrics.mongodb.monitor(Path.resolve(__dirname + "/../../../node_modules/mongojs/node_modules/mongodb"), logger)
 metrics.mongodb.monitor(Path.resolve(__dirname + "/../../../node_modules/mongoose/node_modules/mongodb"), logger)
 
+metrics.event_loop?.monitor(logger)
+
 Settings.editorIsOpen ||= true
 
 if Settings.cacheStaticAssets