Added version details view accessible from the roadmap.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@955 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/tracker.rb

@@ -29,6 +29,10 @@ class Tracker < ActiveRecord::Base
 
   def to_s; name end
   
+  def <=>(tracker)
+    name <=> tracker.name
+  end
+
   def self.all
     find(:all, :order => 'position')
   end