Deprecate "getFiles" for "getSelectedFiles" from XFilePicker2.idl

See http://nabble.documentfoundation.org/Multiselection-needs-work-td4153207.html

Change-Id: Ieceecd04dd161d40054715f74a4351397f97addc
Reviewed-on: https://gerrit.libreoffice.org/16630Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

offapi/com/sun/star/ui/dialogs/XFilePicker.idl

@@ -82,8 +82,6 @@ published interface XFilePicker: com::sun::star::ui::dialogs::XExecutableDialog
         <br/>
         <p>If the dialog is in execution mode and a single file is selected
         the complete URL of this file will be returned.</p>
-        <p>If the dialog is in execution mode and multiple files are selected
-        an empty sequence will be returned.</p>
         <p>If the dialog is in execution mode and the selected file name is false
         or any other error occurs an empty sequence will be returned.</p>
 
@@ -109,6 +107,7 @@ published interface XFilePicker: com::sun::star::ui::dialogs::XExecutableDialog
             a checkbox "Automatic File Extension" which is checked and a valid filter is currently selected
             the dialog may automatically add an extension to the selected file name.</p>
         </p>
+        @deprecated use com::sun::star::ui::dialogs::XFilePicker2::getSelectedFiles instead
     */
     sequence< string > getFiles();
 };