Issue reported by GorillaSapiens: you get notified if a lamp burns
out even if you're blind at the time.
That is intended behavior; you can feel the heat or lack of heat
from a lamp or candle. But the comment from copperwater pointed out
that you shouldn't be able to feel that for a brass lantern.
This suppresses the "power has run out" feedback if blind at the
time. However, applying a lantern to turn it on or off still gives
the on/off feedback on the assumption that there's a switch and you
can feel its position. When hero is blind and lantern is out of
power, trying to turn it on yields "nothing seems to happen". It's
not completely consistent since you would feel the switch in its On
position but claiming that the lantern is on would be a lie.
The basic on and off messages referred to "lamp" even when using a
brass lantern. I thought that that had been fixed a long time ago.
Fixes#842
1a6456ad82