- File upload: allow special characters in the filename (see busboy config defParamCharset)
New features:
- allow file-less attachments
- optional new parameter for customRouteForDownload: checkDownload, a function that is called to allow the client to check and abort the download, like in cases where it belongs to a deleted node
Adapted to sri4node 2.3 + big refactor + dockerized testsuite using localstack.