Many small fixes

-  System and portal admins will now see the internal bar on the main (all) aggregation
-  If an empty search is performed now from the advanced search screens, it correctly sends to a browse, rather than showing a 'Null or Empty Predicate' message
-  Clicking GO on an empty search on a rotating highlight search now also takes you to a browse of all items
-  Mime-type filtered searches are now fully functional
-  Fixed the link to open the stack trace online for admins
-  Corrected builder issue where it was not compiling due to a last minute change on the MemoryMgmt subnamespace
-  Corrected occasional null being thrown from system-wide settings, now looks for null
-  Fixed some text on the system-wide settings that I errantly replaced recently
-  Added default text to the internal wordmarks screen if there are no wordmarks
-  Admins on the internal wordmark screen will also have a link to take you to the admin screen to manage wordmarks
-  Fixed division iddisue when suppressing aggregation-level navigation.  Pagecontainer div was not being added when it should have been.