anchor.diff:  
           { 
               "success": true,
  -            "message": "username recovery instructions have been sent"
  +            "message": "username was sent to e-mail address."
           }
   
   + Response 401 (application/json)
   
           { 
               "success": false,
  -            "message": "the email address was not found" 
  +            "message": "the e-mail address was not found" 
           }
  -
  -
  -
  
positive.code:             "message": "the email address or username was not found" 
          }
  
  
  
  ###Username recovery [POST]
  
  This resource is in head of username recovery.
  
  
negative.code: FORMAT: 1A
  HOST: http://xo-game-sdp.herokuapp.com/webapi
  
  # xo-signing
  
  xo-signin is a simple web api allowing user registration with e-mail verification, password and username
  recovery.
  
  # xo-signin API Root [/]
  
  ## Register new user [PUT/signup]
  
  Registers a new user. Asks for e-mail verification.
  
  Attributes used:
  
  email    - The e-mail address provided by user.
  username - Unique user identifier provided by user. 
  password - The password used to authenticate the user.
  
  The 409 response is returned if a user with a given e-mail address or username already exists.
  
  + Request (application/json)
  
              { 
                  "email" : "mtari11@freeuni.edu.ge",
                  "username" : "MT13",
                  "password" : "1234"
              }
  
  + Response 200 (application/json)
  
              {
                  "id" : "222",
                  "email" : "mtari11@freeuni.edu.ge",
                  "username" : "MT13"
              }
  
  + Response 409
  
              {
                  "username_exists" : false,
                  "email_used" : true,
                  "message" : "The email address mtari11@freeuni.edu.ge is already registered. Please try different email address."
              }
              
  ## Confirm e-mail address [POST/confirm_email/{token}]
  
  Confirms e-mail address to complete user registration process.
  
  + Parameters
      + token (required, string, `"0b3211d3-76c6-456d-8971-20aa277bfc76"`)
  
  + Response 200 (application/json)
  
                  {
                      "id" : "222",
                      "email" : "mtari11@freeuni.edu.ge",
                      "username" : "MT13"
                  }
  
  + Response 404 (application/json)
  
  ## Password recovery [POST/recover_password]
  
  This resource is in head of password recovery.
  
  