Rework of Layered path resolutions that make snapshots of stores containing layers

actually capture the repository context at snapshot creation time. 
Gave ListEntry and MapEntry proper equals() and hashCode methods and backed out 
hibernate-cfg.properties changes.  Doh!  
Added cache configuration for AttributeService entities.
Did some warning removal in a few places.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5576 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

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

@@ -17,6 +17,13 @@ interface Layered
      * @return The underlying indirection.
      */
     public String getUnderlying(Lookup lookup);
+    
+    /**
+     * Get the indirection version.
+     * @param lookup The lookup path.
+     * @return The underlying indirection version.
+     */
+    public int getUnderlyingVersion(Lookup lookup);
 
     /**
      * Get the raw indirection of a layered node.
@@ -24,4 +31,10 @@ interface Layered
      * LayeredDirectoryNodes that are not primary indirections.
      */
     public String getIndirection();
+    
+    /**
+     * Set the indirection version for this layered node.
+     * @param version The indirection version to set.
+     */
+    public void setIndirectionVersion(int version);
 }