tagged version 2.4.6

git-svn-id: http://svn.redmine.org/redmine@13230 e93f8b46-1217-0410-a6f0-8f06a7374b81
tagged version 2.5.2

git-svn-id: http://svn.redmine.org/redmine@13231 e93f8b46-1217-0410-a6f0-8f06a7374b81