Edited the OSGi Chapter based on Stuart's feedback, this chapter now contains more information about Equinox and Knopflerfish, it also adds some clarifications to the introduction.

Added three simple chapters about scripting. Each of these chapters focuses on the same two recipes: how to include an inline script, and how to execute an external script. These three chapters are:

The long-term plan for these chapter is to build out the content to replace the existing (now outdated) chapters from the Definitive Guide on Groovy and Ant.