FELIX-4550 - Upgrade to Jetty 9:

- applied patch from Stefan Seifert (= the improved patch from
  Chetan Mehrotra);
- once again bumped Jetty version to latest: 9.2.6;
- bumped versions of individual projects;
- to do is checking whether JDK 1.7 is necessary for all sub-
  projects.



git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1652026 13f79535-47bb-0310-9956-ffa450edef68
31 files changed