version-0.5.7

• dhcp: request and set hostname and other options (bnc#861476)
• dhcp: accept dns-domain name option containing a domain list
  as compatibility abuse of this option and log it (bnc#862130)
• ibft: always modprobe iscsi_ibft when not yet loaded, added
  list-only mode and workaround missed readlink utility.
• dbus: Fix crashes when dbus instance not running
• leaseinfo: fix accidental closure of file descriptor argument
• client: improve initialization of client-state structure
• compat: apply ethtool and lladdr options from ifcfg variable
• set link-address (mac) for ethernet,vlan,macvlan devices
• do not set mtu or link-address when device is up as this
  tends to fail or break upper [vlan, ...] devices
• limit mtu of upper (vlan) devices to the mtu of lower (eth)
• addrconf: initial lease writting/parsing helpers / disarmed
• Disable modem support for now, new ModemManage API (bnc#859888)
• dhcp: fixed byteswap in ipudp_checksum and checksum_partial
• leaseinfo: include prefixlen in IPADDR same as in ifcfg files