mainwindow: implement _refreshUIFromConfig internal API
(fake) uiProfile: allow profile parameter in methods
profilecontainer: no more micromanagement of activeprofile
soundcontainer's loadConfig wipes out itself

soundcontainer: before loading sounds do a wipe out
drop the stupid dict_ prefix
soundcontainer: s/fileOfSound/fileOfSoundHandler/ for correctness
fix name/handler mixup and fix loading (fixes: #17)