moved provider selection popup menu to be at the top of the main window

for now, i just removed the label that was in its place. i never found the label status to be very useful anyway.
It makes me think too, it may be a better way to do things that the one we are using right now (even though I think we are using "the Qt way").
In this case, you are inverting the responsibilities. Right now the widgets exposes signals and anyone who wants can hook to it, you're doing the opposite and it seems counter intuitive.