Trailblazer is a high-level Architecture libraries for the Ruby web application (not only for Rails). If you are no familiar with it yet - take a 20 minutes walk through guide...
I want to cover once again those places where our team had issues or misunderstanding. Trailblazer documentation got a lot of improvements recently and keep getting more and more care. Some points from this list are covered by the docs, but in practice not everything was smooth.
Matter.js - 2D physics engine for HTML5 mobile and web applications. Has a great demos
Nightly blog update was not perfectly seamless. It's a pity I have no time for auto-tests yet, so let's consider it as "normal". If you got any bugs - feel free to write about it in comments ;)
PHP library for easy CSV manipulation (Bakame.csv) - creating, fetching, filtering etc.
Support for Vagrant has been significantly improved in latest PhpStorm 7. Plugins management and custom path to Vagrantfile
cebe has just released first version of his PHP Markdown parser. With GFM and extensions. php-markdown extra and Smarty pants are yet to come.