The JSON-objects returned by GET-ing /collections,
/tokens, and /admin_tokens can now be used verbatim
to generate the respective objects by POST-ing them
to the endpoints.
The command `dump-things-upload-config` now
supports YAML and JSON input file format. The
format is determined by the suffix or declared
via the -f/--format options.
This commit disables the check for distinct
directories. This allows to support some
older configurations, where inboxes from
different collections share a common directory.