Fixed sorting of listen addresses so that wildcard address is always at the end (closes #187).  Failure to do so could result in several listen sockets to be created instead of only one listening on wildcard address.
Fixed sorting of listen addresses so that wildcard address is always at
the end (closes #187).  Failure to do so could result in several listen
sockets to be created instead of only one listening on wildcard address.

Reported by Roman Odaisky.

firebase/nginx,hy0kl/nginx,firebase/nginx,hy0kl/nginx,hy0kl/nginx,firebase/nginx,firebase/nginx