Improved backward compatibility with default audit settings

- audit.useNewConfig=false is now the default setting and has a new meaning
- In this mode, audit information is broadcast to BOTH the old and new audit configuration, meaning that e.g. you can enjoy new RM and CMIS auditing capabilities whilst still retaining compatibility with your old audit configuration
- When audit.useNewConfig=true only the new config/alfresco/audit/*.xml configuration will be used exclusively. NOT config/auditConfig.xml.
- Note that auditing is still switched off by default and must be switched on with audit.enabled=true
- You can switch on and off individual applications in the new config using
   - audit.repository.enabled
   - audit.cmischangelog.enabled
   - audit.dod5015.enabled
- Simple!

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@18885 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/audit/model/AuditModelRegistry.java

@@ -24,8 +24,6 @@
  */
 package org.alfresco.repo.audit.model;
 
-import java.net.URL;
-
 import org.alfresco.util.PathMapper;
 
 /**
@@ -41,14 +39,20 @@ public interface AuditModelRegistry
 
     /**
      * Method to load audit models into memory.  This method is also responsible for persisting
-     * the audit models for later retrieval.  Models are loaded from the locations given by the
-     * {@link #registerModel(URL) register} methods.
+     * the audit models for later retrieval.
      * <p/>
      * Note, the models are loaded in a new transaction, so this method can be called by any code
      * at any time.
      */
     public void loadAuditModels();
 
+    /**
+     * Determines whether audit is globally enabled or disabled.
+     * 
+     * @return <code>true</code>, if audit is enabled
+     */
+    public boolean isAuditEnabled();
+
     /**
      * Get the application model for the given root key (as defined on the application)
      *