REPO-1681 / MNT-17228: CMIS: Attempt to delete non-current version throws "Unexpected: current version does not appear ..."

- Fixed the misuse of the version node instead of live node
   - Added permission check for deleting a version
   - Uncommented the test added by JanV (REPO-1228) + added testcase for deleting with no permission
   - PublicApiCallContextHandler inherits basic auth parameters from BasicAuthCallContextHandler, to ensure proper exceptions are thrown by CMIS servlets (in this case, CmisPermissionDeniedException instead of CmisUnauthorizedException).

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/DEV/5.2.N/root@133954 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/opencmis/CMISConnector.java

@@ -504,7 +504,15 @@ public class CMISConnector implements ApplicationContextAware, ApplicationListen
 	public void setServiceRegistry(ServiceRegistry serviceRegistry)
 	{
 		this.serviceRegistry = serviceRegistry;
-	}
+	}
+
+    /**
+     * Return the service registry
+     */
+    public final ServiceRegistry getServiceRegistry()
+    {
+    	return this.serviceRegistry;
+    }
 
 	/**
      * Sets the descriptor service.