Fixed http://wordpress.org/support/topic/great-job-please-contact-me?replies=2. You can now specify 0 in 'Number of posts'. That way, the category can be shown/hidden based on whether it is empty or not.

git-svn-id: https://plugins.svn.wordpress.org/category-posts-in-custom-menu/trunk@899226 b8457f37-d9ea-0310-8a92-e5e31aec5664