fix BVLC6 Delete-Foreign-Device-Table-Entry (#56)

* fix BVLC6 Delete-Foreign-Device-Table-Entry

* Add unit test failure detection to Makefile report target

* Fix the IPv6 layers for sending PDU

Co-authored-by: Steve Karg <skarg@users.sourceforge.net>

test/Makefile

@@ -16,6 +16,9 @@ logfile:
 
 report:
 	cat ${LOGFILE}
+	cat ${LOGFILE} | grep Failed: | \
+	awk 'BEGIN { err = 0 } $$2 > 0 { print "Unit Tests Failed!"; err = 1} \
+	END {exit err}'
 
 abort: logfile abort.mak
 	$(MAKE) -s -f abort.mak clean all

test/bvlc6.mak

@@ -38,4 +38,7 @@ depend:
 clean:
 	rm -rf ${TARGET} $(OBJS)
 
+test: ${TARGET}
+	./${TARGET}
+
 include: .depend