Commit
6bd39c754c4b52b8af4e25a48449a864d935d62b
by Achim KrausFix stop/start for observe-relations.
Fixes issue #2245.
Cancel pending responses and notifies on stop as well.
Canceled notifications are not longer in transit.
Signed-off-by: Achim Kraus <achim.kraus@cloudcoap.net>