orta/ARAnalytics — pull request #38 by hungtruong (2013-11-22 21:03:43+00:00)
Title: adding "default" string to GA, as it is a required property

Without a category, Google Analytics does not record an event:

https://developers.google.com/analytics/devguides/collection/gajs/eventTrackerGuide#SettingUpEventTracking