Use latest api snapshot

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1481901 13f79535-47bb-0310-9956-ffa450edef68
Use latest api snapshot

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1481902 13f79535-47bb-0310-9956-ffa450edef68
Add discovery api/impl and use latest jsp snapshot

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1481904 13f79535-47bb-0310-9956-ffa450edef68
SLING-2869 : Update to Apache Felix SCR 1.6.2 and Apache Felix EventAdmin 1.3.2

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1481919 13f79535-47bb-0310-9956-ffa450edef68