- move data-directory back to default: /etc/brltty
- move brltty to /bin and /lib, so that it can be used to repair the system
without /usr mounted (#276181)
- move vstp and libbrlttybba.so to brlapi
- brltty no longer requires brlapi
- brlapi now requires brltty from the same build
- build the TTY driver (it was disabled since it first appered in 3.7.2-1)
- build with speech-dispatcher, packed into a separate sub-package