Booking22 Example requires JDK5

Booking22 Example is hard-coded to rely on JDK5. As EAP5 is supported only with JDK6 and the example runs fine on JDK6, this constrain should be removed.

Also, is there any reason, why not to fix JBIDE-7172 ? I would really like to see working out-of-the-box exerience with JBDS4 and bundled EAP5.