CHANGES:
- Add support for client FQDN (RFC 4702) (#133 @hannesm)
- Client: allow cidr, gateway, no_init being passed to connect. If passed,
no DHCP requests will be done. This enables MirageOS unikernels where the
decision whether to do DHCP or not is done at runtime (#135 @hannesm) - Client: pass options to be embedded in the DHCP request (#135 @hannesm)
- server: extend Update and Reply with lease and DHCP options (#135 @hannesm)