message: Remove prefix "::ffff:" for ipv4 addresses
  (fixes
diff: @@ -15,6 +15,9 @@ module.exports = function saveLoginIp () {
  if (lastLoginIp === undefined) {
  lastLoginIp = req.connection.remoteAddress
  }
  + if (lastLoginIp.substr(0, 7) === '::ffff:') { // Simplify ipv4 addresses
  + lastLoginIp = lastLoginIp.substr(7)
  + }
  models.User.findByPk(loggedInUser.data.id).then(user => {
  user.update({ lastLoginIp: lastLoginIp }).then(user => {
  res.json(user)
  