Overlay now shows reload button even if app is down and image is no longer reachable
Taken keepScrollPosition out of refresh as it causes strange 'movements', getting buttons to disappear and appear depending on just the dgrid list rather than the whole widget area
Preliminary (and incidental) code for having an image/something while the app loads
Destroy the textbox only if it was actually there
Added checks on buttons positionings in all cases, so that buttons are always within the range and generally in the right spots and actually reachable and functional
TODO done