I should get quick feedback when I begin loading the Querki page

(User Story, Closed -> Fixed, Priority: High, Test Status: No automated tests yet , Reported By Justin du Coeur, )
UX
Summary: While Querki responds fast, the initial load can take several seconds, especially over a 3G line, and we have a plain white screen during that. We should fix that.
I believe we should start by showing a stripped-down version of the menubar, containing just the Querki logo, and a large spinner. Then, as soon as the app starts, it should enhance the menu bar, but keep showing the same spinner. (Replacing the current "Loading...") Finally, it should display that page content once that is ready.