anchor.diff:  **if domain and/or key don't exist, they are created**
   
   + Parameters
  -    + domain (required, string) ... the domain where to store the key/value
  +    + domain (required, string, `private`) ... the domain where to store the key/value
       + key (required, string) ... the desired key
   
   + Request (application/json)
  
positive.code: 
  + Parameters
      + q (required, string) ... the value to match with
      + limit (optional, number) ... number of desired responses , default is 10
      + skip (optional, number) ... skip the `skip` firsts responses, default is 0
  
  + Request
  
  
negative.code: |x-apikey   |Your API key   |
  |x-apisecret|Your API secret|
  
  ## After login
  
  After login has been called, HTTP Basic Authentication will be used to authenticate every request.
  
  