[SYNCOPE-358] Applying JAX-RS annotation change to ConnectorService#readByResource and reverting changes to ConnInstanceTestITCase

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1467953 13f79535-47bb-0310-9956-ffa450edef68
Disabling unit tests from the jaxrs profile

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_1_X@1467954 13f79535-47bb-0310-9956-ffa450edef68