settings: Add example for local smtp server configuration to local_settings
wiki: Do not show whole body on previews
base: Use eldarion-ajax in base template
base: Use django-jqueyry instead of on-site provided jquery
competitions: Extend SeasonDetail view with forms that allow problem submission
problems: Create proof of concept view for problem submission
series: Show the series with closest deadline by default
competitions: Add organizer_group field to competition