Allow issue list to be sorted by target version (#832).

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1264 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/query.rb

@@ -101,7 +101,7 @@ class Query < ActiveRecord::Base
     QueryColumn.new(:assigned_to, :sortable => "#{User.table_name}.lastname"),
     QueryColumn.new(:updated_on, :sortable => "#{Issue.table_name}.updated_on", :default_order => 'desc'),
     QueryColumn.new(:category, :sortable => "#{IssueCategory.table_name}.name"),
-    QueryColumn.new(:fixed_version),
+    QueryColumn.new(:fixed_version, :sortable => "#{Version.table_name}.effective_date", :default_order => 'desc'),
     QueryColumn.new(:start_date, :sortable => "#{Issue.table_name}.start_date"),
     QueryColumn.new(:due_date, :sortable => "#{Issue.table_name}.due_date"),
     QueryColumn.new(:estimated_hours, :sortable => "#{Issue.table_name}.estimated_hours"),