Missing some socket.* setsockopt values

[Yuri]

Both python 2 and 3 are missing some setsockopt values, for example in 
the code below:
They all come from /usr/include/netinet/in.h, but IP_MULTICAST_LOOP=11 
is still in python, but IP_ADD_MEMBERSHIP=12 isn't.

import socket
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_VIF, 1)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_RSVP_ON, 1)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_PORTRANGE, 1)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_RECVIF, 1)

Yuri