getSocket: Use returned family to create the socket

The existing code was parsing the passed in host to determine what type
of socket family to create.  getaddrinfo already provides this for us,
so there's no need to perform our own, potentially buggy, parsing.

Signed-off-by: James McCoy <jamessan@users.sourceforge.net>
Socket: Try all resolved addresses before scheduling a reconnect

Instead of assuming the first address returned from getaddrinfo can be
reached, try each one in turn until a connection is established.

Signed-off-by: James McCoy <jamessan@users.sourceforge.net>