Recording accesses on a new asa_analytics table. Note that this doesn't account for the time effectively spent on the webpages, only the requests to webpages.
Now recording accesses also on a new "asa_accurate_analytics" table. These are recorded within the browser, using javascript, and account for a) the times in which the page is the element with focus (i.e., it's the top window) and b) when the user opens up a jquery-ui dialog, effectively viewing a different kind of resource for a while and then coming back to where he was.
Removed need for the parse_url() on util.js
Cleanup