[OPENIDM-2239] Include "sync" in list of event types. (Contrary to the review, I did not include "custom" eventTypes -- will address in OPENIDM-2301]

git-svn-id: https://svn.forgerock.org/openidm/trunk@3958 d98387aa-ee2c-4292-a9e6-504d2a719fd3