DIRSERVER-2039: replace ehcache-core by OSGi-ified version provided by ServiceMix, need to downgrade from 2.4.4 to 2.4.3 because only that version is currently available.

git-svn-id: https://svn.apache.org/repos/asf/directory/apacheds/trunk@1647658 13f79535-47bb-0310-9956-ffa450edef68
DIRSERVER-2041: Add OSGi (pax-exam) tests for ApacheDS

git-svn-id: https://svn.apache.org/repos/asf/directory/apacheds/trunk@1647659 13f79535-47bb-0310-9956-ffa450edef68