Code cleanup.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11874 e93f8b46-1217-0410-a6f0-8f06a7374b81
Include Redmine::I18n in helpers tests.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11875 e93f8b46-1217-0410-a6f0-8f06a7374b81