anchor.diff:  
   + Response 400 (application/json)
   
  -## Get user by username [GET/users/{username}]
  +## Get user by username [GET/login/users/{username}]
   Returns user password and email if found
   
   + Parameters
  
positive.code: 
  + Response 400 (application/json)
  
  ## Get username by token [GET/{token}]
  Returns username by token if found
  
  
  
negative.code: # xo-login API Root [/]
  
  
  ## Login user [PUT/login]
  
  Request contains username and password and with this credentials
  4 types of responses are returned:
  