SLING-2667 - [Tooling] create text-only console that exposes the
operations performed and their results

Initial verison of a Console which logs all operations performed by the
repository.

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1512502 13f79535-47bb-0310-9956-ffa450edef68
SLING-2667 - [Tooling] create text-only console that exposes the
operations performed and their results

Modify the Tracer to be bound to the EventAdmin as well.

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1512503 13f79535-47bb-0310-9956-ffa450edef68