Add lockable to migration.

lib/devise.rb

@@ -189,7 +189,7 @@ module Devise
   #
   def self.add_module(module_name, options = {})
     ALL << module_name
-    options.assert_valid_keys(:strategy, :model, :controller, :route, :flash, :passive_strategy)
+    options.assert_valid_keys(:strategy, :model, :controller, :route, :flash)
 
     config = {
       :strategy => STRATEGIES,

lib/generators/devise/templates/migration.rb

@@ -6,7 +6,7 @@ class DeviseCreate<%= table_name.camelize %> < ActiveRecord::Migration
       t.recoverable
       t.rememberable
       t.trackable
-      # t.lockable :unlock_strategy => :<%= Devise.unlock_strategy %>
+      # t.lockable :lock_strategy => :<%= Devise.lock_strategy %>, :unlock_strategy => :<%= Devise.unlock_strategy %>
 
       t.timestamps
     end