Fix: Theatre was messing up the listings of other post types.
Fix: ticket button was too narrow in widgets.
Fix: shopping cart wasn't styled.
Fix: post_class(); was confilicting with the CSS for productions.
Fix: [wp_production_event] was missing a proper default template.

git-svn-id: https://plugins.svn.wordpress.org/theatre/trunk@879693 b8457f37-d9ea-0310-8a92-e5e31aec5664