Re: turning "Octave:broadcast" warning off by default

[Jordi Gutiérrez Hermoso]

I should add, my original motivation of having a warning there was to
nudge users to figure out what broadcasting was and why it would be
useful or not. The whole point of enabling broadcasting was to make
bsxfun more apparent. I was *hoping* that people would discover
broadcasting... by accident!

bsxfun is a great feature with a terrible name, so most users are
never aware that it even exists, and resort to loops instead.

- Jordi G. H.