Merged 0.6 branch into trunk.

Permissions management was rewritten. Some permissions can now be specifically defined for non member and anonymous users.
This migration:
* is irreversible (please, don't forget to *backup* your database before upgrading)
* resets role's permissions (go to "Admin -> Roles & Permissions" to set them after upgrading)

git-svn-id: http://redmine.rubyforge.org/svn/trunk@674 e93f8b46-1217-0410-a6f0-8f06a7374b81

db/migrate/003_issue_add_note.rb

@@ -1,4 +1,7 @@
 class IssueAddNote < ActiveRecord::Migration
+  # model removed
+  class Permission < ActiveRecord::Base; end
+
   def self.up
     Permission.create :controller => "issues", :action => "add_note", :description => "label_add_note", :sort => 1057, :mail_option => 1, :mail_enabled => 0
   end