makes versions resource shallow

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@6183 e93f8b46-1217-0410-a6f0-8f06a7374b81
use #labelled_form_for instead of #labelled_tabular_form_for

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@8141 e93f8b46-1217-0410-a6f0-8f06a7374b81