update changelog for upload
use FileFd::Write instead of fwrite for errors

Using the static FileFd::Write method gives us error messages for free
so we use it here to avoid failing silently (with a fail silent error).

Git-Dch: Ignore
proper cleanup varargs in _error (uncovered by Coverity)

Git-Dch: Ignore
ensure that FileFd::Size returns 0 in error cases
make autoconf happy by "mv configure.{in,ac}"

Git-Dch: Ignore
remove ALL_LINGUAS as it is overruled by po/LINGUAS

The list shows that it is ignored as some translations which are shipped
are not included here, so remove this source of possible confusion.

Git-Dch: Ignore
add missing Turkish (tr) to po/LINGUAS

And while at it ensure that this can't happen again by letting the build
fail in case a po file is available but the language isn't mentioned in
the LINGUAS file (not even as a disabled language).
correct management-typo in description found by lintian
implement debian/rules build-{arch,indep} as required by policy 3.9.4
reenable automatic parallel build of APT

It works for a while now in manual tests, now lets see how it will
perform if enabled for all by default automatically.
exclude config.{sub,guess} from source package

Lintian complains about these links in the source package as they leave
the source directory and as they are autogenerated there isn't that much
sense in shipping them, we can just recreate them before calling
configure.
update the symbol files to reflect current state
run "doxygen -u" to update doxygen config

Git-Dch: Ignore