Added missing newlines to all files

This caused build errors some systems, namely RHEL 5.

server/core/gw_ssl.c

@@ -184,4 +184,4 @@ bool
 ssl_required_but_not_negotiated(DCB *dcb)
 {
     return (NULL != dcb->listen_ssl && SSL_HANDSHAKE_UNKNOWN == dcb->ssl_state);
-}
+}

server/core/session.c

@@ -1117,4 +1117,4 @@ static void
 mysql_auth_free_client_data(DCB *dcb)
 {
     free(dcb->data);
-}
+}