PROTON-192: Allow test_server_hostname_authentication to skip on proton-j profile

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/branches/jni-binding@1437600 13f79535-47bb-0310-9956-ffa450edef68
PROTON-192: Remove the protective RuntimeExceptions from JNIMessage#getMessageId and getCorrelationId. These are no longer required now Rafi's fix for pn_data_get_atom (rev 1437489) has been merged to this branch.

git-svn-id: https://svn.apache.org/repos/asf/qpid/proton/branches/jni-binding@1437601 13f79535-47bb-0310-9956-ffa450edef68