0.8.0

Changed

• dhcpv4 option variants added (breaking)
• dhcpv4 message type variants added (breaking)
• ClientNetworkInterface removed inner tuple
• Change has_msg_type return type to just bool

Fixed

• v6 set_xid_num was taking bytes from the wrong end
• dhcpv6 DomainSearchList (opt 24)

Added

• dhcpv4 opt 119 DomainSearch
• dhcpv4 opt 114 CaptivePortal
• dhcpv4 message variants 9-18 added, breaking change for MessageType
• dhcpv4 added DhcpOption for 91/92/93/94/97
• UnknownOption encode/decode
• dhcpv4 options 151-157 from bulkleasequery RFC
• add Display impl for v4::Message