filemanager: allow to delete all selected files

src/filemanager.html

@@ -91,7 +91,11 @@
       <div class="modal-content">
         <div class="modal-body">
           <p class="text-bold text-danger" ng-show="entryRemove.error">{{ entryRemove.error }}</p>
-          <h4 ng-hide="entryRemove.error">{{ 'filemanager.removeDialog.reallyDelete' | tr:{ fileName: entryRemove.entry.fileName } }}</h4>
+          <!-- TODO remove fileName later once all translations have been updated -->
+          <h4 ng-hide="entryRemove.error">{{ 'filemanager.removeDialog.reallyDelete' | tr:{ fileName: selected[0].fileName } }}</h4>
+          <ul>
+            <li ng-repeat="entry in selected">{{ entry.fileName }}</li>
+          </ul>
         </div>
         <div class="modal-footer">
           <button type="button" class="btn btn-default" data-dismiss="modal">{{ 'main.dialog.no' | tr }}</button>