UIW: fix bugs with empty arrays

Change-Id: I219520cc67a1c485b337a6c7f290197fc08199ba
UIW: remove selection when UIList contents changed

Change-Id: I4d92b4eef07a26914a87099e72ad98b86ef19074
UIW: replace comma by dot in number representation

Change-Id: I703f8772ef751425342621fbec1f6b90c350a6b5
UIW: with UIDialog can set parent and modality

Change-Id: Ia00d7af9660a7b80d9714f285450672b1ecf64f8
UIW: it is now possible to use '*' as joker in paths

Change-Id: I534d74bfd36cb97e01f5a88de5b01767676d1784