Removed i18nlangtag/lang.h

Change-Id: I6678e58180b71e45d3363c311925d1583c079312
Removed svl/lstner.hxx

Change-Id: Icafb7e15f909ed97c08ca1ea7eb16f869bbb3109
Removed com/sun/star/uno/Reference.hxx

Change-Id: I83f88425ea6f389b8447d326dcaa3d529911f542
Merge ld:/home/gelma/dev/prg/for_riccardo/slot1 into for_riccardo
Merge ld:/home/gelma/dev/prg/for_riccardo/slot2 into for_riccardo