I'll think of a better description later, but if you're reading this, then I haven't

Allows you to generate a new Ruby plugin project, build it, test it in Jenkins and release it to the Jenkins Update Center.

A suite of utilities for bringing continous integration to your projects (not the other way around) with jenkins CI

Introduces Agile technologies into provisioning process by keeping it integrated with Continuous Integration Server. To do so it incorporates Git DVCS into the process.