[BRLTTY] Bug: Freedom Scientific driver broken in current git head for Focus Blue

[Aura Kelloniemi]

Hello

I have tried hacking with brltty and I noticed that in the current git head
version the Freedom Scientific driver is broken.

Symptoms: BRLTTY no more recognizes the Gdf and Wheel key names on Focus Blue
(referred to as small model in BRLTTY sources).

Reason:
In brltty/Drivers/Braille/FreedomScientific/braille.c on line 125 BRLTTY
states that Focus Small models have Nav keys which are defined to have the
same key codes as Wheel keys in the key tables in the same file (line 59).
Changing the key configuration to refer to ...Selector instead of ...Gdf and
...Nav instead of ...Wheel does not help - these names aren't recognized either.

-- 
Aura