Don't depend on Rails' delegate

gistfile1.diff

diff --git a/core/lib/refinery/plugins.rb b/core/lib/refinery/plugins.rb
index 7f7efea..869286a 100644
--- a/core/lib/refinery/plugins.rb
+++ b/core/lib/refinery/plugins.rb
@@ -1,11 +1,16 @@
+require 'forwardable'
+
 module Refinery
   class Plugins
     include Enumerable
+    extend Forwardable
 
     def initialize(*args)
       @plugins = Array.new(*args)
     end
 
+    def_delegators :@plugins, :<<, :each, :delete_if
+
     def find_by_model(model)
       model = model.constantize if model.is_a? String
       detect { |plugin| plugin.activity.any? {|activity| activity.klass == model } }
@@ -36,8 +41,6 @@ module Refinery
       map(&:title)
     end
 
-    delegate :<<, :delete_if, :each, :to => :plugins
-
     class << self
       def active
         @active_plugins ||= new