Adds buit-in groups to give specific permissions to anonymous and non members users per project (#17976).

git-svn-id: http://svn.redmine.org/redmine@13417 e93f8b46-1217-0410-a6f0-8f06a7374b81
Adds locales strings (#17976).

git-svn-id: http://svn.redmine.org/redmine@13418 e93f8b46-1217-0410-a6f0-8f06a7374b81