Fixes for dynamic model management: fix delete model validation (in MT case) & fix model restore from archive

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@6984 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/tenant/SingleTDeployerServiceImpl.java

@@ -24,6 +24,8 @@
  */
 package org.alfresco.repo.tenant;
 
+import java.util.List;
+
 import org.apache.commons.logging.Log;
 
 /**
@@ -51,4 +53,9 @@ public class SingleTDeployerServiceImpl implements TenantDeployerService
     {
         // NOOP
     }
+    
+    public List<Tenant> getAllTenants()
+    {
+        return null;
+    }
 }