#1 Connection parameters from command-line

Hi!

I added three parameters to be passed from command-line:

• log-port is the UDP syslog port
• query-port is the TCP (HTTP) port for queries
• addr is the address to bound to, used only in the UDP server configuration

There is a shallow control on the ports (integers, and should be in (0,65535]), but no control on the addr.

As discussed OTR, now there are just two parameter:

• syslog-addr, defaults to 127.0.0.1:9514 (UDP)
• query-addr, defaults to 127.0.0.1:9080 (HTTP)

I tried to test also IPv6 support with --query-addr ::1:12345 but I cannot get it working. IPv4 is (apparently) well-behaved.