Conflicts: apps/er-coap-06/er-coap-06-engine.c apps/er-coap-06/er-coap-06-observing.c apps/er-coap-06/er-coap-06-separate.c apps/er-coap-06/er-coap-06-transactions.c apps/er-coap-06/er-coap-06.c Removed er-coap-06.