Added a check to see if an updated issue has been closed and, if it has, updates the date closed.
Further changes to date closed.
Removed the IsFinal property in lieu of checking the appropriate transition.
When the user clicks a link to initiate a page transition, the current page remains in view until the new page has arrived from the server, at which point the new page transplants the old. This looks good now due to the loading bar at the top of the page.