[KARAF-2595] Disable LogTest test via MBean waiting the new method

git-svn-id: https://svn.apache.org/repos/asf/karaf/trunk@1547130 13f79535-47bb-0310-9956-ffa450edef68
[KARAF-2590] Upgrade to Pax Exam 3.4.0

git-svn-id: https://svn.apache.org/repos/asf/karaf/trunk@1547132 13f79535-47bb-0310-9956-ffa450edef68