anchor.diff:  GET request represents the URN assigned to a specific File definition, returning the single JSON object defining
   the given File.
   
  -**Endpoint Definitions To Be Documented**
  -
  -Endpoint | Supported HTTP Methods | Events Generated
  ------------- | ------------- | ------------
  -/files/{urn}/contents | GET | FileAccessed
  -/files/{urn} | GET | FileAccessed
  -/files/{entityReferenceType}/{referenceUrn} | GET | FileAccessed (for each file)
  -/files/{urn} | DELETE | FileDeleted
  -
  -
  -
   ## File Definition [/files]
   ### Define the metadata of a file in preparation of an actual file upload [PUT]
   
  
positive.code:                         
  ## File Upload - Multi-Part Form Data [/files/{urn}/multipart]
  ### Upload actual file bytes to the cloud using an multi-part form data submission from a web form [POST]
  
  + Parameters
      + urn (required, string, `urn:uuid:66b7d3e9-69e1-499e-a867-9c4a939c6f7d`) ... System-assigned URN assigned at creation of file definition
  
negative.code:                 "code" : 1,
                  "message" : "urn:uuid:95b995e2-dde5-4dd0-b50c-e804999411d8"
              }
  
  ## Specific File Definition Retrieval [/files/{urn}{?view}]                
  ### Retrieves the file definition [GET]
  
  + Parameters
      + urn (required, string, `urn:uuid:66b7d3e9-69e1-499e-a867-9c4a939c6f7d`) ... System-assigned URN assigned at creation of file definition
      + view (optional, string, `Standard`) ... A valid JSON Serialization View name (case-sensitive)
  
  + Response 200 (application/json)
  
      + Headers
  
              SnapBundle-Event : FileAccessed
              
      + Body
      
              {
                  "urn" : "urn:uuid:66b7d3e9-69e1-499e-a867-9c4a939c6f7d",
                  "timestamp" : 1393453813429,
                  "lastModifiedTimestamp" : 1393453815268,
                  "fileName" : "system-generated-file-name-to-prevent-collisions",
                  "entityReferenceType" : "Object",
                  "referenceUrn" : "urn:instagram:FooQux:47c23bc6-2a58-4e37-93b0-848776b42404",
                  "mimeType" : "image/jpg",
              }
  
  + Response 400 (application/json)
  
      + Body
  
              {
                  "code" : -2,
                  "message" : "No such URN"
              }
              
  ## File Content Retrieval [/files/{urn}/contents]                
  ### Retrieves the actual file content from the cloud [GET]
  
  > The actual MIME type of the response *is the MIME type from the file definition*. For this reason it is critical that the MIME type is 
  accurately reported when defining the file.
  
  
  + Parameters
      + urn (required, string, `urn:uuid:66b7d3e9-69e1-499e-a867-9c4a939c6f7d`) ... System-assigned URN assigned at creation of file definition
  
  + Response 200
  
      + Headers
  
              SnapBundle-Event : FileRetrieval
              Content-Disposition : attachment; filename="system-generated-file-name-to-prevent-collisions"
              
      + Body
      
              **File contents**
  
  + Response 400 (application/json)
  
      + Body
  
              {
                  "code" : -2,
                  "message" : "No such URN"
              }
  
  ## Related File Definitions Retrieval [/files/{entityReferenceType}/{referenceUrn}{?view}]                
  ### Retrieves the complete collection of file definitions associated with the specified entity [GET]
  Always returns a JSON array where each member of the array is a file definition associated with the specified entity.
  
  + Parameters
      + entityReferenceType (required, EntityReferenceType, `Object`) ... Valid EntityReferenceType enum value
      + referenceUrn (required, string, `urn:uuid:12345`) ... Case-sensitive `urn` of an existing entity of type `entityReferenceType`
      + view (optional, string, `Standard`) ... A valid JSON Serialization View name (case-sensitive)
  
  + Response 200
  
      + Headers
  
              SnapBundle-Event : FileAccessed
              
      + Body
  
              [    
                  {
                      "urn" : "urn:uuid:66b7d3e9-69e1-499e-a867-9c4a939c6f7d",
                      "timestamp" : 1393453813429,
                      "lastModifiedTimestamp" : 1393453815268,
                      "fileName" : "system-generated-file-name-to-prevent-collisions",
                      "entityReferenceType" : "Object",
                      "referenceUrn" : "urn:instagram:FooQux:47c23bc6-2a58-4e37-93b0-848776b42404",
                      "mimeType" : "image/jpg",
                  }
              ]
  
  + Response 400 (application/json)
  
      + Body
  
              {
                  "code" : -2,
                  "message" : "No such URN"
              }
              
  ## File Deletion [/files/{urn}]                
  ### Deletes an existing relationship by its system-assigned URN key [DELETE]
  Immediately purges both the file definition and the physical file stored in the cloud.
  
  + Parameters
      + urn (required, string, `urn:uuid:66b7d3e9-69e1-499e-a867-9c4a939c6f7d`) ... System-assigned URN assigned at creation of file definition
  
  + Response 204
  
      + Headers
  
              SnapBundle-Event : FileDeleted
                          
  # Group Tag Endpoints
  ## Overview
  