I am looking the best way to track the Site Activity in Google Analytics for a web app made with Backbone and Requires.

Looking At Google's Page, I found this drop-in plugin - Backbone.Analytics.

My questions are:
1) using Backbone.Analytics, should I change backbone.analytics.js in order to add _gaq.push(['_setAccount', 'UA-XXXXX-X']);?
2) Are there other possible solutions/plugins?

backbone.js google-analytics
Edit
Report