=============================
* Added ``get_item_attributes`` function.
* Renamed ``get_item_ids`` to ``get_items_ids``.
* Renamed ``get_item_by_id`` to ``get_item``.
* Renamed ``delete_item_by_id`` to ``delete_item``.
* Made ``create_item`` return id of the created item.
* Added ``secretstorage.exceptions`` module.
* Made all functions throw exceptions from that module.
* Updated the documentation.
* Added ``delete_test_items.py`` script that deletes all test items.