Added an option to see all versions in the roadmap view (including completed ones).

On calendar and gantt, versions are now clickable and link to the corresponding entry in the roadmap.

Since calendar and gantt are now cached, don't forget to empty your cache before restarting the application.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@516 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/version.rb

@@ -33,6 +33,10 @@ class Version < ActiveRecord::Base
     effective_date
   end
   
+  def completed?
+    effective_date && effective_date <= Date.today
+  end
+  
 private
   def check_integrity
     raise "Can't delete version" if self.fixed_issues.find(:first)