Dtool-s3

---------------------

Fixed
^^^^^

- Fixed issue where changes introduced in 0.14.0 meant that
the "dtool verify" command stopped working on datasets created
using dtool-s3<0.14.0. This fix means that "dtool verify" works
as expected on all dtool-s3 datasets. For more details please
see: https://github.com/jic-dtool/dtool-s3/issues/16.
Thanks to `Antoine Sanner <https://github.com/AntoineSIMTEK>`_
for raising this issue.

---------------------

Added
^^^^^

- Add support for datasets containing file names with non-ascii characters.
This feature has the potential to introduce issues if one has a proto dataset
created using an earlier version of dtool-s3 and one then tries to freeze it
with this version of dtool. It is not anticipated that anyone encounter this
scenario as proto datasets are more or less ephemeral when datasets are copied
to s3. This feature fixes https://github.com/jic-dtool/dtool-s3/issues/14.
Thanks to `Johannes L. H�rmann <https://github.com/jotelha>`_ and `Lars
Pastewka <https://github.com/pastewka>`_ for reporting this issue.


Changed
^^^^^^^

- Converted generic ``DTOOL_S3_DATASET_PREFIX`` config key into
endpoint-specific ``DTOOL_S3_DATASET_PREFIX_<BUCKET NAME>`` parameter.

---------------------

Added
^^^^^

- Support for presigned URLs when using ``dtool publish``. To enable this feature one needs
to set the ``DTOOL_S3_PUBLISH_EXPIRY`` setting to the number of seconds one wants the
dataset to be accessible for.

Fixed
^^^^^

- Fixed long standing issue with ``created_at`` and ``frozen_at`` admin
metadata being returned as string rather than float. Many thanks to
`Johannes L. H�rmann <https://github.com/jotelha>`_ for reporting and fixing.
See https://github.com/jic-dtool/dtool-s3/pull/13.

---------------------

Added
^^^^^

- Added ability to specify custom endpoints thanks to `Lars Pastewka
<https://github.com/pastewka>`_

---------------------

Added
^^^^^

- Added ability to specify user prefix for object path thanks to `Lars Pastewka
<https://github.com/pastewka>`_

---------------------

Added support for tags.

Added
^^^^^

- Added ``dtool_s3.storagebroker.delete_key()`` method
- Added ``dtool_s3.storagebroker.get_tag_key()`` method
- Added ``dtool_s3.storagebroker.list_tags()`` method