Made revert to version behave better. Now when a node is reverted a clone of

the version being reverted to is created.  This clone has the previous head version
as its ancestor and a wcm:reverted aspect applied.  wcm:reverted contains
wcm:revertedid, the node id that the reversion is a clone of.  Revert to version is
now a simple call to a new AVMService method, revert().
Propagated this to the remote API.
Modified the the AVMRevertToVersionAction to use this mechanism. Though really the
action isn't really needed now.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@4824 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/avm/AVMNode.java

@@ -34,6 +34,12 @@ public interface AVMNode
      * @param ancestor The ancestor to set.
      */
     public void setAncestor(AVMNode ancestor);
+    
+    /**
+     * Change the ancestor of a node.
+     * @param ancestor The ancestor node that should be set.
+     */
+    public void changeAncestor(AVMNode ancestor);
 
     /**
      * Get the ancestor of this node.