SLING-4042 Donate sling-mock, jcr-mock, osgi-mock implementation

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1631356 13f79535-47bb-0310-9956-ffa450edef68
SLING-4044 : Remove distributed eventing from job handling

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1631363 13f79535-47bb-0310-9956-ffa450edef68