preseed cfgs should also not be served by proxy
Switch to QEMU launcher file.

Switch to QEMU launcher file under workspace/ because jenkins doesn't
escape correctly hurd QEMU multiboot command line (see qemu manpage,
"-initrd "file1 arg=foo,file2"). Add hurd QEMU multiboot command line.
fixup gg0s last commit
copy the complete workspace
only test graphical hurd installation on mondays and send results to debian-hurd@lists.debian.org
use backports for the stable lintian tests
whitespace sensitive languages are evil, esp. when they are only rarely so
use release names (wheezy, jessie...) not code names (stable, testing...)