Accept wrapper default parameters

lib/annotate.rb

@@ -29,7 +29,7 @@ module Annotate
     :timestamp, :exclude_serializers, :classified_sort, :show_foreign_keys,
   ]
   OTHER_OPTIONS=[
-    :ignore_columns, :skip_on_db_migrate
+    :ignore_columns, :skip_on_db_migrate, :wrapper_open, :wrapper_close
   ]
   PATH_OPTIONS=[
     :require, :model_dir

lib/generators/annotate/templates/auto_annotate_models.rake

@@ -30,6 +30,8 @@ if Rails.env.development?
       'sort'                    => "false",
       'force'                   => "false",
       'trace'                   => "false",
+      'wrapper_open'            => nil,
+      'wrapper_close'           => nil,
     })
   end