Remove frascati.version property to enforce this example to use the current frascati version. Use project.version instead.

Cosmetic updates.

- iterate over the chain of class loaders to keep their JAR URLs.
- display the two arrays of URLs in order to debug the issue on Bamboo.

* Removed useless dependency exclusion:
  - org.objectweb.fractal.fractalexplorer:fractal-explorer
  - com.google.collections:google-collections
  - org.beanshell:bsh
  - org.objectweb.fractal.fraclet.java:fractal-spoonlet
  - org.objectweb.fractal.fraclet.java:fractaladl-spoonlet
  - org.swinglabs:swing-layout
  - org.swinglabs:swing-worker

- frascati-implementation-script-beanshell
- frascati-implementation-script-groovy
- frascati-implementation-script-javascript
- frascati-implementation-script-jruby
- frascati-implementation-script-jython
- frascati-implementation-script-fscript
- frascati-implementation-script-xquery

* Updated copyright date.

* Added two images showing introspection of the FraSCAti composite with FraSCAti Explorer and JConsole.
* Divided sections into subsections.
* Cosmetic updates.