[orca-list] minor issues with braille support

[kendell clark <coffeekingms gmail com>]

hi all

Storm sent me an old braille sense to test braille support on. It's a 
lot more fiddly than I would like, but this is not an orca issue. You 
have to change the permissions on the brlapi.key file before orca can 
communicate with the display. However there is one issue with this 
particular display. It doesn't seem to support contracted braille. When 
I attempt to enable contracted braille in orca's braille settings, the 
display goes blank and no longer keeps up with orca. If I disable the 
option, orca can once again talk to the display. I have had no problems 
with the display keeping up, I've used various applications without 
issue. I'm beginning to wonder if this is a display issue or a liblouis 
or brltty issue? I hope I'm not wasting anyone's time, I'm very new to 
braille support so I could be missing something obvious. I did change 
teh contraction table to en-uebg2, followed by pressing the ok button. 
This is with orca master, completely up to date, and sonar linux, also 
up to date, version 16.07.

Thanks

Kendell Clark