Removed com/sun/star/datatransfer/clipboard/XClipboardListener.hpp

Change-Id: I08b13dac2543e6d1a9f0d61129ba8f8eee7a20cf
Removed cppuhelper/interfacecontainer.hxx

Change-Id: I5c4031cdaf0b57ca776d35f6fbc3d63f3a00e654
Merge ld:/home/gelma/dev/prg/for_riccardo/slot2 into for_riccardo