Improve gem require

lib/whaleback.rb

@@ -2,5 +2,16 @@ require "whaleback/version"
 require 'paperclip'
 
 module Whaleback
-  # Your code goes here...
+  require 'whaleback/errors'
+  require 'whaleback/media_column'
+
+  ActiveRecord::Base.include(Whaleback::MediaColumn)
+
+  module Media
+    def self.table_name_prefix
+      'whaleback_media_'
+    end
+    autoload :Obj,         'whaleback/media/obj'
+    autoload :Attachment,  'whaleback/media/attachment'
+  end
 end