Removed annoate and hirb Gemfiles.

Annotate: Better look in schema.rb, this reference should be always up
to date.

Hirb: To reactivate hirb, look in railscasts:
http://railscasts.com/episodes/48-console-tricks-revised

app/models/task.rb

@@ -74,21 +74,3 @@ class Task < ActiveRecord::Base
   end
 end
 
-# == Schema Information
-#
-# Table name: tasks
-#
-#  id             :integer(4)      not null, primary key
-#  name           :string(255)     default(""), not null
-#  description    :string(255)
-#  due_date       :date
-#  done           :boolean(1)      default(FALSE)
-#  workgroup_id   :integer(4)
-#  assigned       :boolean(1)      default(FALSE)
-#  created_on     :datetime        not null
-#  updated_on     :datetime        not null
-#  required_users :integer(4)      default(1)
-#  weekly         :boolean(1)
-#  duration       :integer(4)      default(1)
-#
-