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git-svn-id: https://svn.apache.org/repos/asf/incubator/sirona/trunk@1571265 13f79535-47bb-0310-9956-ffa450edef68
add disabled flag to be able to configure within sirona.properties

git-svn-id: https://svn.apache.org/repos/asf/incubator/sirona/trunk@1571266 13f79535-47bb-0310-9956-ffa450edef68
improve a bit path tracking: prevent npe

git-svn-id: https://svn.apache.org/repos/asf/incubator/sirona/trunk@1571267 13f79535-47bb-0310-9956-ffa450edef68