anchor.diff:  
   
   Write a new comment for a tip. Requires the session_id and tip_id. Returns the sent comment JSON object.
  -POST /tip/<tip_id>/comments
  +POST /tip/{tip_id}/comments
   > Content-Type: application/json
   > X-Session: session_id
   {"tip_id":"e78dfb77-9553-4b0d-a6f6-7b076adc62f5", "content":"commentTest"}
  
positive.code: 
  Update a submission with new fields values. Returns the updated submission in a JSON array
  If finalize is set to true finalize the submission and get back the submission receipt number.
  PUT /submission/<submission_id>
  {"context_gus":"d1c364a2-65ed-4794-9664-7edb9858e0e6","wb_fields":{"Full description":"22","Short title":"11"},"finalize":true,"files":["00186c18-5909-4cd3-ba48-041dc16a4741"],"receivers":["63793685-b9a0-4ead-812d-4af62800017c"]}
  < 200
  < Content-Type: application/json
  
negative.code: }
  
  Upload a file to the selected submission_id. Returns a JSON array with file information and the file id to integrate in the submission.
  POST /submission/{submission_id}/file
  > Content-Disposition: attachment; filename="1375208531.png"
  > Content-Length: 27130
  > Content-Type: image/png
  