clearer & modern code
dsh-pkg will now log installs/removes/upgrades
what's with the DRY_RUN
dsh, dcp: removed useless --dry-run option
clients do not log to local file, only to master
by default, log to file

log to /dev/null if you don't want logs
added a default logrotate conf file

Will be installed as /etc/logrotate.d/synctool and it rotates
/var/log/synctool.log