[project @ peter@palfrader.org-20080706094246-lgxrzpnljewux8g5]

[project @ peter@palfrader.org-20080706094246-lgxrzpnljewux8g5]
Introduce hourly runs for dsa-update-apt-status that happen if the system
changed in the meantime, that is if /var/lib/dpkg/status or
/var/cache/apt/pkgcache.bin are newer than the status file.  Also run if the
status file does not exist, or if the last apt-get update call failed.