Re-added getRootHref() method, which was removed because it's not used by

Helma code. Turns out the manage application needs it.

src/helma/framework/core/Application.java

@@ -831,6 +831,14 @@ public final class Application implements IPathElement, Runnable {
 	return pwfile.authenticate (uname, password);
     }
 
+    /**
+     *  Return the href to the root of this application.
+     */
+    public String getRootHref () {
+	return getNodeHref (getDataRoot(), null);
+    }
+
+
     /**
      * Return a path to be used in a URL pointing to the given element  and action
      */