Improve ASP code: configuration window
Reported from #15838
Maybe remove the install_label text, because it's overwritten in update_packages_list() anyway
alant: is this ready for QA for intrigeri?
@u, I think @alant uses "Ready for QA" + "keep assigned to himself" as a way to express something along the lines of "I believe I've resolved it, next step is to build, test, and confirm the problem it actually solved".