* enable release based selection for deb-src (closes: 731102)
* document Dpkg::Progress-Fancy (closes: 726169), thanks to James McCoy
vendor/makefile: fix build error for parallel builds
vendor/debian/makefile: apply 6f3c4e33 for debian/makefile as well
Handle SIGWINCH in APT::Progress-Fancy=1
fix build failure with the new apt-vendors stuff
releasing package apt version 0.9.13.2
fix release script to deal with vendors

Call xmllint with each vendor to check if any vendor specific errors are
present, but check the translations only with one vendor to check for
translation specifics – vendor and translation specific isn't possible.

Git-Dch: Ignore
tell the release script that we use git now

Git-Dch: Ignore
update libapt-pkg4.12 symbols file

also fixing the release script code to deal with 'set -e' mode while
checking the symbols file.