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

test/functional/search_controller_test.rb

@@ -11,6 +11,7 @@ class SearchControllerTest < Test::Unit::TestCase
     @controller = SearchController.new
     @request    = ActionController::TestRequest.new
     @response   = ActionController::TestResponse.new
+    User.current = nil
   end
   
   def test_search_for_projects