Includes...

Bootstrap Blocks makes use of the following tools

Grunt, Less, JSHint

Bootstrap is written in Less, and Grunt makes it really easy to customize Bootstrap properly. JSHint helps you maintain good-quality js.

Documented

BootstrapBlocks is documented. It's also maintained regularly, so if you have a feature request, submit a pull requestion or hit me up on Twitter!

The Module...

The Boostrap Blocks module makes it easy to build modules that output Bootstrap-ready code. It comes with a Bootstrap administration navbar block, and Boostrap menu blocks (with dropdowns, which aren't in default menu blocks.).