Further cron logic cleanups

Merge pull request #69 from mailinglists35/patch-4

make --quiet really quiet

Update changelog for 1.2.0-1 release

zfs-auto-snapshot Debian release 1.2.1-1

Merge pull request #18 from hawkowl/master

Set zfs-auto-snapshot to use UTC time for snapshots

Fix pool exclusions.

Use $ZPOOL_STATUS instead of $ZFS_STATUS for pool exclusions.

A mistaken variable name made the pool exclusion logic a no-op and
broke the --skip-scrub switch.

Also correct a trivial comment typo.

Merge pull request #2 from ulope/master

Fixed --prefix and --sep regexes

Fix the hourly-daily transposition in the Makefile.

The hourly cron job was installed to cron.daily, and the daily cron
job was installed to cron.hourly, which caused incorrect scheduling.

Split the cron file for anacron compatibilty.

Split the cron file so that the hourly, daily, weekly, and monthly
zfs automatic snapshots still happen even if the system is offline
temporarily during the scheduled event, such as during a reboot.

On Debian systems, if anacron is installed, then it is used to run
the /etc/cron.{hourly,daily,weekly,monthly} directories, but not
the /etc/cron.d directory. This means that /etc/cron.d jobs are not
run if the system is offline when crond would usually invoke them.