Update to Google Universal Analytics
Add string for close button on mobile as data-attribute

Closes #39.
Closes #41.
Fire an event if page loads with hash

Closes #37.
Rewrite addEventListener polyfill to work with elements other than document
Update normalize.css to 2.1.2
Update jQuery to 1.10.1
v1.0.3
Add old GA snipped back and add new UA ID