* [Platform/Plugins/Popups] Plugins that use genericAjaxPopup() can now specify the 'target' option using a jQuery Position object; e.g. { my: 'top left', at: 'bottom right', of: 'selector' }.
* [CHD-3622] [Explore/Usability] Improved the way the last accessed time is recorded for explorer sets.  Previously the access timestamp only updated 20% of the time in order to reduce extraneous UPDATE database queries when someone quickly paged through the list.  Now, instead, the access time is updated any time at least 30 seconds has elapsed since the last recorded access time.  Additionally, the access time is now always recorded when the set is created.  The prior inefficiency rarely caused problems, but it would manifest if an explorer set was created shortly before the maintenance scheduled job ran, or if the maintenance job was set to run very often instead of nightly.  This could result in explorer sets being purged while they were still in use.