XNAT-4518, XNAT-4520: included missing scripts on Noninteractive.vm template; checkboxes (and switchboxes) can use 1/0 for checked/unchecked as well as true/false.

XNAT-4472, XNAT-4478: These should both be fixed as a result of changing the Site Administration url to /app/template/Page.vm?view=admin

all instances of putting guest user in auth principal. Modified filters
to consider null and guest as anon.

XNAT-4454: Existing and new query string parameters are now properly merged (also added some comments to NoMenuTop.vm to help identify it when debugging in the browser)

XNAT-4268: set window.loggedIn variable to true in popup templates - the user must be logged in to view the popup anyway.

XNAT-4368: make ANY table with a header sortable by simply adding 'sortable' class to the <table> element or 'sort' to a <th> element.

XNAT-4303: tweaked horizontal positioning of prearchive ui; tweaks to styling of prearchive details page; fixed reference to jquery-migrate script in 'Noninteractive' template.

Updated jQuery 1.x and jQuery migrate scripts; removed jQuery 2.x files since they weren't used; changed name of 'chosen' menu functions to a more generic name for future transition to another menu widget.

Fix for issues with iframe xmodal dialogs and the timeout script. Removed title from some loading dialogs.

Changed xmodal dialogs to use proper function calls - lowercase 'xmodal' global object with 'open', 'close', 'message', and 'loading' method names.

Many many updates: CSS changes to change appearance of tabs and buttons; shuffling of YUI css and image files; initial setup page is ready; multi-form submit is less annoying... etc...

HTML updates for style changes; added menu where stored searches will eventually end up; consolidated includes for the footer into a single location; re-enabled left-hand tree code to use the JavaScript; removed references to jQuery UI since we're no longer using it.

XNAT-3910, XNAT-3918, XNAT-4030: MAJOR UI CHANGES! NEW topBar nav menu and user bar; many, many tweaks to styling; removed a bunch of <table> elements that were used for layout; tweaked CSS to account for that; updates to 3rd-party JavaScript libraries (but rolled back jQuery to 1.12.0).

integrate gradle-xnat-plugin and work out configuration for Cargo deploy
tasks.