protocol/inspircd: Send CHGHOST via ENCAP when setting the host of unregistered users logged in via SASL
protocol/inspircd: Skip sending CHGHOST if the host is not meant to be changed

If the host equals "*" then no change is necessary
protocol/inspircd: Remove dead code from inspircd_svslogin_sts()

InspIRCd is always using uids so the check is always false
nickserv/list: always pass a pointer to the arg

(though Atilla is saying the handlers ignore it anyway)
Merge pull request #351 from attilamolnar/master+inspircd-sasl-chghost

protocol/inspircd: Set vhost properly for users logging in via SASL