use subclasses method instead of class variable at Enumeration model

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@8977 e93f8b46-1217-0410-a6f0-8f06a7374b81
Rails3: test: template must be specified as controller/action not with their extension any more

Contributed by Sylvain Utard.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@7543 e93f8b46-1217-0410-a6f0-8f06a7374b81