Minor changes to Makefile. (add 'install' hook, clean up flags, etc)

[icmpmonitor] / icmpmonitor.ini

[kryten.subgeniuskitty.com]
host = kryten.subgeniuskitty.com
interval = 1
max_delay = 10
up_cmd = "echo UP: kryten.SGK"
down_cmd = "echo DOWN: kryten.SGK"
start_condition = up

[talisker.subgeniuskitty.com]
host = talisker.subgeniuskitty.com
interval = 1
max_delay = 10
up_cmd = "echo UP: talisker.SGK"
down_cmd = "echo DOWN: talisker.SGK"
start_condition = down