debian/rules, debian/patches/00_fix_libexec.patch: Moved hal_lpadmin
from /usr/lib/hal-cups-utils/ to /usr/lib/hal/scripts/ to be compliant
to HAL specificationas
(http://people.freedesktop.org/~david/hal-spec/hal-spec.html). Now
the script gets actually called by HAL and so Plug'n'Print (automatic
setup of a printer when plugged in) really works under Ubuntu (fixes
https://blueprints.launchpad.net/ubuntu/+spec/automatic-printer-conf
by having hal-cups-utils installed, LP: #127841).