to avoid crashes (Closes: Bug#854295).

This reverts commit d0d5bac1.

with braille and highlight, as it makes brltty crash randomly (Closes: #854295).

This reverts commit 570ab77f.

when it failed at startup (Closes: Bug#851623).
patches/xbrlapi-nospam.patch

-   HTTPS checkout, instead of HTTP
-   correct upstreams website

Closes #848008.

  * patches/git-manufacturer.patch: Upstream patch to use USB manufacturer to
    match braille devices with a generic USB ID, to avoid taking control of
    unrelated devices.
  * brltty-udeb.udev.rules: Match USB manufacturers too.

  * patches/git-braillenote.patch: Upstream patch

patches/{git-speech-crash.patch,wait-polkit,xbrlapi-setfocus.patch,xbrlapi.patch}

(Closes: Bug#837640)

brltty needs to access /var/lib/BrlAPI as well as preference files.

instead of failing to start BrlAPI.

  * brltty.service: Make sure brltty can access /var/lib/BrlAPI.
  * control: brltty now needs policykit installed.

  * patches/defauth-keyfile.patch: Fix using both polkit and keyfile.
  * brltty.postinst: Do not make /etc/brlapi.key readable by world any more,
    polkit should be enough.
  * patches/defauth-polkit: Default to using both policykit and
    /etc/brlapi.key to authenticate brlapi clients.