- Update to Jetty 8.x, Servlet 3.0, JSP 2.2
   - Require Java 6
   - Use Servlet and JSP jars from Jetty instead of Tomcat
   - Tomcat remains at 6.0.37 supporting Servlet 2.5 / JSP 2.1
   - Remove Jetty dependency in console error pages
   - Build files for Jetty 8.1.14
   - Doc updates
   - Delete Jetty 7.6.14
   - Jetty 8.1.14 not yet checked in,
     waiting to see if a new version is released soon,
     but build will download it for testing