SNMP Traps

See raddb/trigger.conf in the "master" git branch. The server can now send traps when it starts, when a home server is marked "dead", "alive", etc. The functionality is abstracted so that it doesn't *have* to be SNMP traps. Instead, a set of triggers is pre-defined in the server, and those triggers cause arbitrary scripts to be run. The scripts currently send triggers, but they can also be changed to send email, etc. Alan DeKok.