Upgrade to Gradle 2.0 and fixed the WebAppRunner bug missing XHTML files
;-)
Changes

* Upgrade build.gradle files to Gradle 2.0
* Fixed build_everything to not build projects by default in Chapter 11: Advanced Topics with JPA.
 (Chapter 11 requires a REMOTE GlassFish instance running on a local workstation with a working MySQL database for Arquillian)
* Added markdown document for Chapter 11
* Fixed Chapter 9 jms-essentials project, which now works. A race condition issue in the tests

Todo: figure out how to run the JMS 2.0 async code from Chapter 9 with Java EE 7  compatible standalone JMS server *-)