[DS-899] Last modified timestamp doesn't trigger on bitstream delete bugfix

git-svn-id: http://scm.dspace.org/svn/repo/dspace/trunk@6887 9c30dcfa-912a-0410-8fc2-9e0234be79fd

dspace-api/src/main/java/org/dspace/content/Item.java

@@ -306,6 +306,15 @@ public class Item extends DSpaceObject
         return myDate;
     }
 
+    /**
+     * Method that updates the last modified date of the item
+     * The modified boolean will be set to true and the actual date update will occur on item.update().
+     */
+    void updateLastModified()
+    {
+        modified = true;
+    }
+
     /**
      * Set the "is_archived" flag. This is public and only
      * <code>WorkflowItem.archive()</code> should set this.