Tsd-api-client

The new and enhanced cli, `tacl2` (still in beta) gained support for resumable directory upload.

* Update s3cmd to v2.1.0

Also makes installation easier.

* Users can now initiate resumable upload by referring to files with absolute or relative local paths
* Resumable download works as documented, when providing a `--download-id`

Bugfix release
* Fix issues with resumables listing and deletion
* Add tacl --version parameter for verifying the installed client version
* Uploading no longer requires write rights to files, read-only files work
* tsd-s3cmd --help now displays help text specific to TSD usage.
* tacl now has basic error handling for requests instead of printing stack traces.
* Added hint that not getting an export token could mean you lack privileges to get one.

tacl` no longer requires argument order.