revert and try knock PR nsarno#170 changes - req generators

Author: piratechicken

lib/generators/knock/install_generator.rb

@@ -1,3 +1,5 @@
+require 'rails/generators'
+
 module Knock
   class InstallGenerator < Rails::Generators::Base
     source_root File.expand_path("../../templates", __FILE__)

lib/generators/knock/token_controller_generator.rb

@@ -1,3 +1,5 @@
+require 'rails/generators'
+
 module Knock
   class TokenControllerGenerator < Rails::Generators::Base
     source_root File.expand_path("../../templates", __FILE__)

lib/knock/engine.rb

@@ -1,12 +1,6 @@
 module Knock
   class Engine < ::Rails::Engine
     config.eager_load_paths += Dir["#{config.root}/lib/**/"]
-    # https://github.com/nsarno/knock/issues/156
-    if ::Rails.const_defined? 'Generators'
-      config.eager_load_paths += Dir["#{config.root}/lib/**/"]
-    else
-      require_relative './authenticable'
-    end
     isolate_namespace Knock
   end
 end