exposed to allow access from jelly script.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@3907 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/model/AbstractItem.java

@@ -161,7 +161,7 @@ public abstract class AbstractItem extends Actionable implements Item {
         getConfigFile().write(this);
     }
 
-    protected final XmlFile getConfigFile() {
+    public final XmlFile getConfigFile() {
         return Items.getConfigFile(this);
     }