* Merge from debian unstable. Remaining changes: - Add brltty-setup, installed in both the udeb and the normal system. - Add initramfs integration to run brltty-setup if necessary before usplash starts. - Add ubiquity integration to propagate any brltty configuration to the target system. - Add udev rules and /lib/brltty/brltty.sh to the normal (non-udeb) package as well. - Enable brltty if /etc/default/brltty has RUN_BRLTTY=yes, which is set by the installer if brltty is configured; add a NEWS entry for upgraders. - Don't install /etc/brltty.conf in the package - Install udev rules with the same name (85-brltty.rules) in the udeb as in the deb. - Remove the dh-lisp build-dependency, remove the cl-brlapi package, and adjust the brltty package description accordingly. dh-lisp is not in main. - Build for all python versions (python 2.6), not just the current version. - Enable brltty at startup on the target system if the alternate installer is used. - Create separate rules file for the brltty deb, with the rules now pointing to a separate script - Add gbp.conf file for git buildpackage - Do not build the at-spi driver, the legacy at-spi stack is no longer in the archive.