XNAT-4292 Got sessionXmlRebuilder running so things didn't stay stuck in receiving. Made changes to PreferenceHandler classes and Methods to make sure the methods get called when appropriate and only when appropriate.

Fix XNAT-4291. Path of destination dir incorrect in prearchive when session moved from unassigned to an existing project.

to add uptime calls to SiteConfigApi along with storing launch time in
XnatAppInfo, replacing prearchive path call in PrearcUtils, removing
stupid file, and changing the Configuration command on the Administer
menu to Site Administration.

Got all mail properties to correctly update and persist, not just host, port, user, password, and protocol.

XNAT-4282 Delayed tag initialization until actually accessed to delay call to config service. Also fixed concurrent modification error in alias token scheduling.

fallback to the dicom-project.rules file.

Refactored tabs.js to be 'universal' (instead of just for the Admin UI); fixed display (or lack thereof) of descriptions on select menus; minor style tweaks.

property to pluginClass, added call to get entityPackages from plugins.

Fixed bug where if you put in bad info for your smtp server when setting up the app, but later fixed it, it will always start off with the bad info after Tomcat restarts.

Got changes to email prefix and admin email to take effect. Added support for preference change event handlers for notifications events and for handlers that can handle both notifications and site config events.

Completed rearchitecting of preference event handler framework and separated NotificationsPreferences from SiteConfigPreferences.

Merge YAML changes with updated elements.