started track events, it sets gaPresent according to window.ga
added common links to event tracking
unbinding multiple calls on common links
common links accepts optional action and label
refactoring the category option to be more global
adding a fallback to location.pathname when data attr for category does not exist
closing modal after each test to avoid keeping it on the screen
adding event tracking for on page links
consider anchor for on page links
Merge pull request #821 from renatocn/reboot

Started track events