Added version control for wiki pages.

app/models/page.rb

@@ -1,5 +1,10 @@
 class Page < ActiveRecord::Base
 
+  belongs_to :user, :foreign_key => 'updated_by'
+
+  acts_as_versioned
+  self.non_versioned_columns += ['permalink', 'created_at']
+
   validates_presence_of :title, :body
   validates_uniqueness_of :permalink
 

app/models/user.rb

@@ -29,6 +29,7 @@ class User < ActiveRecord::Base
   has_many :assignments, :dependent => :destroy
   has_many :tasks, :through => :assignments
   has_many :send_messages, :class_name => "Message", :foreign_key => "sender_id"
+  has_many :pages, :foreign_key => 'updated_by'
   
   attr_accessor :password, :setting_attributes