readme updates (doc start).
move cron.daily content to official place.
Export one more variable to simplify sub-scripts writing. Use it.
Implement PRE & POST for groups & machines (not just globals), and allow groups and machines to override configuration files.
Search for binaries for groups and machines, too.
No need for the global & manual cron.daily/* installation, it's now a setting in $machine/install file.
Import more global file from the old private global-config package.
Move DBs data files to /home/ and stop/start service before/after doing it.
firewall: move global variables to run.sh, and don't run if iptables is not installed (in an LXC) or if the main IP is a private one (any case).
Rename PHYSCONF_* to SERVCONF_*
Update documentation with new variables.