#3 Add Time Since Last visit

[Jerrod]

Add the ability to display the time since last visit for
each URL that is tracked.

[Jerrod]

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user_id=763865

I changed the priority for this item. Also, I want to clarify
that eventually the ability to track the time since the last
time a particular URL was clicked and the time since a
particular screen name clicked a URL should both be available.