FTP transport configuration

## JSON

"Ftp": {
  "host"      : "ftp.domain.com",
  "login"     : "login",
  "password"  : "password",
  "folder"    : "/folder"
},

## General

## Options host (mandatory) = ftp host without schema ("ftp://") login = ftp login (mandatory if not anonymous) password = ftp password (mandatory if not anonymous) folder = the folder you want to put the backup in. If not set, the backup will be put in the ftp root