Enabled ACLs in Attributes. They are now readable and writable.

Added alternative calling convention versions of existing 
AttributeService methods.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5529 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/attributes/AttributeImpl.java

@@ -60,6 +60,15 @@ public abstract class AttributeImpl implements Attribute
     {
     }
     
+    /**
+     * Helper constructor for copy constructors.
+     * @param acl The ACL.
+     */
+    protected AttributeImpl(DbAccessControlList acl)
+    {
+        fACL = acl;
+    }
+    
     public void setId(long id)
     {
         fID = id;