Fix generators bug.

lib/generators/devise/install_generator.rb

@@ -3,7 +3,7 @@ require 'active_support/secure_random'
 module Devise
   module Generators
     class InstallGenerator < Rails::Generators::Base
-      source_root File.expand_path("../templates", __FILE__)
+      source_root File.expand_path("../../templates", __FILE__)
 
       desc "Creates a Devise initializer and copy locale files to your application."
       class_option :orm
@@ -13,11 +13,11 @@ module Devise
       end
 
       def copy_locale
-        copy_file "../../../../config/locales/en.yml", "config/locales/devise.en.yml"
+        copy_file "../../../config/locales/en.yml", "config/locales/devise.en.yml"
       end
 
       def show_readme
-        readme "README"
+        readme "README" if behavior == :invoke
       end
     end
   end