add new fact: macaddress_primary
- returns MAC of first builtin, non-expansion bus interface
- fix issue #52
partial fix for issue #50
remove the ntp_sync directive
- this resource doesn't belong here. If somebody needs to restart the service
periodically, they can do that themselves. It shouldn't be mandatory.
- fixes issue #48
add new raw constructor: managedmac::cron
- fixes issue #47
Merge branch '0.5.7'
- add fact: macaddress_primary
- add raw constructor: cron
- make ntp class idemtpotent
- fix documentation