Koken is a free and self-hosted CMS (PHP-MySQL) that is focused on building websites where portfolio/gallery is in the core (like designer or photographer sites).
Wedding fonts should be one of your main concerns as you are getting ready for a wedding event. This would ensure that the reply cards, invitations and wedding stationery that should be sent out in advance are taken care of.
Typeahead.js for building smart auto-complete form fields comes as a jQuery plugin, shows suggestion as-users-type and can feature top suggestions with the help of styling.
BugKick is an open source bug tracking and task management application (source is hosted on GitHub) that is “light” in means of features (which i sometimes nice).