anchor.diff:  
   After sending a `:publish` message we should expect an `:response` message to be
   sent back or `:error` if an error is ocurred. The `:dest` property is mandatory.
  -
  -
  -== PUSH/PULL
  -
  -This section will contain messages that are part ot the PUSH/PULL scalability
  -protocol.
  -
  -
  -=== PUT
  -
  -TBD
  -
  -
  -=== TAKE
  -
  -TBD
   
   
   == Clients & Servers
  
positive.code: sent back or `:error` if an error is ocurred. The `:dest` property is mandatory.
  
  
  == PUB/SUB
  
  This section will contain messages that are part ot the PUB/SUB scalability protocol.
  
  
  === :subscribe
  
negative.code: 
  === Rationale
  
  The tipical web application usually follows the api REST architecture, but the main
  problem of that is that is bound directly to the HTTP semantics that are not
  always coherent or not always clear how to use.
  
  