anchor.diff:  
   ##### Request parameters
   
  -* `ignore_missing` if set to true then __200 (OK)__ is returned instead of __404 (Not Found)__ if content doesn't exist  
  +* `ignore_missing` if set to 'true' then __200 (OK)__ is returned instead of __404 (Not Found)__ if deleted content object doesn't exists in DCP.  
    
   DELETE /rest/content/{dcp_content_type}/{dcp_content_id}{?ignore_missing}
   < 200
  +< Content-Type: plain/text
  +Content deleted successfully.
   
   
   --
  
positive.code: 
  Some operation calls on REST API need to be authenticated by provider. Caller provides credentials by HTTP URL parameters `provider` and `pwd`, or via standard HTTP Basic authentication.
  
  # Description of usual server responses
  
  * __200 ("OK")__ - the request was successful (some API calls may return 201 instead).
  * __400 ("Bad Request")__ - the request could not be understood or was missing required parameters. Body of HTTP response contains description of problem.
  * __401 ("Unauthorized")__ - authentication required for requested operation and credentials not provided, or authentication failed
  * __403 ("Forbidden")__ - user doesn't have permissions for requested operation.
  * __404 ("Not Found")__ - resource was not found
  * __500 ("Internal error")__ - internal application error or misconfiguration, should be reported to administrators. Body of HTTP response contains description of problem.
  ---
  
  
negative.code: Data normalizations are performed during this request processing and content object is extended by DCP system data fields - performed normalization tasks depend on configuration for given `dcp_content_type`.
  
  *Provider authentication required.*
  
  ##### Response content
  Response contains JSON structure with `status` field containing 'insert' or 'update' string.
  
  POST /rest/content/{dcp_content_type}/{dcp_content_id}
  > Accept: application/json
  < 200
  