gtk: unit_info_box not unreffed
There is special g_object_ref(unit_info_box) when unit_info_box is created, to make sure that it won't get accidentally destroyed when refcount temporarily goes to zero. The problem is that there's no related unref even when the widget finally should be destroyed.
Noticed on master gtk3x-client, but presumable in other gtk-clients and branches too.
Same for g_object_ref(ei->widget) in editinfobox_create(), that exist for the same case.