Editing league

DEPRECATION WARNING: f.error_messages was removed from Rails and is now available as a plugin. Please install it with `rails plugin install git://github.com/rails/dynamic_form.git`. (called from _app_views_leagues_edit_html_erb__1238379980_61648667893980_0 at /home/flipper1234/uclacademicals.org/releases/20111201170026/app/views/leagues/edit.html.erb:4)