WordPress Yeoman Generator: generator-devpress
Devpress is a Yeoman generator for scafollding your WordPress projects which includes Grunt build scripts for concatenating and minimising CSS and JS files, and compressing images.
Drupal Yeoman Generator: generator-drupalbase
Drupalbase is a simple Yeoman generator for Drupal to speed up your initial setup.
Ninja Form Layout
My Ninja Forms Layout plugin adds the options of fieldset and div elements to the Ninja Forms plugin to help improve layout and styling.