Add a second category for user slingshot2

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1633558 13f79535-47bb-0310-9956-ffa450edef68
SLING-4058 - tweaks to testOsgiResourceEvents()

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1633568 13f79535-47bb-0310-9956-ffa450edef68