[orca-list] Pull BrlTTY 3.7.2 support from Orca?

[Willie Walker <William Walker Sun COM>]

Hi All:

This is a query to see how many people are still using BrlTTY 3.7.2 and 
who have not yet moved on to BrlTTY 3.8 or better.

I'd like to pull the crusty BrlTTY 3.7.2 support out of Orca if nobody 
is using it.  If you have BrlTTY 3.8 or better, this shouldn't affect 
you, and it will also allow us to start paving the way for more control 
of Orca and your desktop via your braille display.

So...please let me know if you are still reliant upon BrlTTY 3.7.2.  You 
can determine which version you have by looking at the output of the 
following command:

brltty --version

Thanks!

Will