Made the ThreadPoolExecutorFactory more configurable, but also with more sensible defaults.

- The queue for background jobs is unlimited
 - A smaller number of core threads is maintained
 - It is possible to set the threads' priority (default low)
Added hasAspect() method to XPath functions.
Various other cosmetic changes.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@6146 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/domain/hibernate/NodeImpl.java

@@ -153,19 +153,6 @@ public class NodeImpl extends LifecycleAdapter implements Node, Serializable
         return getUuid().hashCode();
     }
 
-//    @Override
-//    public boolean onDelete(Session session) throws CallbackException
-//    {
-//        // check if there is an access control list
-//        DbAccessControlList acl = getAccessControlList();
-//        if (acl != null)
-//        {
-//            session.delete(acl);
-//        }
-//        return NO_VETO;
-//    }
-//
-
     public Long getId()
     {
         return id;