The profile would reload for many settings-changed signals.
It didn't listen to the deco-info-changed signal, because
that had no effect (which seems to be a bug).
Since this flag should indicate whether the deco-info is
shown and therefore a change should replot the profile,
let's listen to the corresponding signal.
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
99284a88f7