streamline public settings availability and syncing.  this is driven mostly by the need to have an `:email_configured` property that we can use on the frontend to dictate some of our UI.

make all of our actions have eager confirmation, so we don't wait for server responses for any of the actions.  also, add in a confirmation on user removal.

more fixes for modal launches and styling, plus make our PasswordReveal component start to look appropriate.

second batch of updates for new people admin screens which includes all the new modals for add user scenarios (unstyled at the moment).

initial work on new People admin section.  still a WIP but we now have everything converted over react/redux and most of the core functionality is in place.

New filter widget, relative time filters, and time groupings

Fix loading `version.properties` from uberjar

Fix dash dropdown