JetBrains has just released WebStorm 7.0 GA with support for EJS, Mustache, Handlebars, Web Components, Stylus, Karma, Istanbul, Compass, and comes with various enhancements.
According to a study, the most expressive general-purpose languages are Clojure, CoffeeScript and Haskell. The study uses LoC/commit as the measuring unit of expressiveness.
Web Workbench, the extension that brings Sass, LESS, and Coffeescript to Visual Studio, has been updated. This release adds support for Visual Studio 11, improvements to the import process and collapsible outlining for CoffeeScript.
GitHub has open sourced Janky, their Continuous Integration server built on top of Jenkins and augmented with Hubot, a chat automation tool.