Changed post drafts to maintain a store a unique id for each file upload to fix issues with duplicate file names

model/file.go

@@ -19,6 +19,7 @@ var (
 
 type FileUploadResponse struct {
 	Filenames []string `json:"filenames"`
+	ClientIds []string `json:"client_ids"`
 }
 
 func FileUploadResponseFromJson(data io.Reader) *FileUploadResponse {