Version history
---------------
+[2.0.4] - 2020-05-13
+
+* Enhance SDL API set() function argument validation to cover also dictionary items.
+
+[2.0.3] - 2020-01-22
+
+* Add a new SDL storage API function `is_active()` to check healthiness of SDL instance.
+
+[2.0.2] - 2020-01-14
+
+* Version bump.
+
+[2.0.1] - 2020-01-13
+
+* Add a fake database backend implementation to be used only for testing
+ purposes when the real DBAAS database service is not available.
+
[2.0.0] - 2020-01-03
* Change find_keys() and find_and_get() API functions to support glob-style