Log Message:
Update darkstat to 3.0.719. From Bartosz Kuzma in PR pkg/50113.

v3.0.719 (24 May 2015)
 - Implement tracking of remote ports: shows which ports the host
   is making outgoing connections to. Long time feature request.
 - Bugfix: when the capture interface goes down, exit instead of
   busy-looping forever.
 - Fix "clock error" due to machine reboot.
 - SIGUSR1 now resets the time and bytes reported on the graphs
   page.
 - Account for all IP protocols.
 - Change the default ports_max to only twice the default
   ports_keep.