added the ability to set the sort order for issue statuses

git-svn-id: http://redmine.rubyforge.org/svn/trunk@205 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue_status.rb

@@ -18,6 +18,7 @@
 class IssueStatus < ActiveRecord::Base
   before_destroy :check_integrity  
   has_many :workflows, :foreign_key => "old_status_id"
+  acts_as_list
 
   validates_presence_of :name
   validates_uniqueness_of :name