Octopress Top Categories Plugin

I have a lot of categories on this blog, particularly for astronomical objects, but I realized that Octopress doesn’t come with a page listing the categories by default. This would be very useful for me, especially as a quick way to look up an object to see if I’ve seen it before, so I installed this categories list plugin for Octopress. This plugin was all well and good for making a list or cloud of all your categories, but there wasn’t anything for ordering the categories by number of posts.