[SYNCOPE-386] Checking mapping of the given kind (user, role) before attempting to get latest sync token

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1488907 13f79535-47bb-0310-9956-ffa450edef68
[SYNCOPE-386] Checking mapping of the given kind (user, role) before attempting to get latest sync token

git-svn-id: https://svn.apache.org/repos/asf/syncope/trunk@1488909 13f79535-47bb-0310-9956-ffa450edef68