Bug 416718 - We should update our version of Jetty for SR2
Changed test.performance project settings needed to allow compiling with
JDK7.

Signed-off-by: Timo Kinnunen <timo.kinnunen@gmail.com>
Added README.md and CONTRIBUTING.md files.

Signed-off-by: Timo Kinnunen <timo.kinnunen@gmail.com>