avoid warnings about sources.list.sample (gone with imgadm v2)
FWAPI-39: All VMs need to allow pings from any by default
OS-2051 serial console login should set TERM appropriately
Reviewed by: Keith Wesolowski <keith.wesolowski@joyent.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>
Merge remote-tracking branch 'joyent/release-20130613'