Added per-project tracker selection. Trackers can be selected on project settings.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@920 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/tracker.rb

@@ -29,6 +29,10 @@ class Tracker < ActiveRecord::Base
 
   def to_s; name end
   
+  def self.all
+    find(:all, :order => 'position')
+  end
+  
 private
   def check_integrity
     raise "Can't delete tracker" if Issue.find(:first, :conditions => ["tracker_id=?", self.id])