CELIX-119: removed apr mem pools from filter, service_reference and added resulting needed changes 


git-svn-id: https://svn.apache.org/repos/asf/incubator/celix/trunk@1600137 13f79535-47bb-0310-9956-ffa450edef68
CELIX-119: Updated thread and mutex wrapper

git-svn-id: https://svn.apache.org/repos/asf/incubator/celix/trunk@1600144 13f79535-47bb-0310-9956-ffa450edef68