Release v0.2.0

Bug fix: Catch all exceptions on incorrect response.

Catch erroneous response during JSON parsing.

Merge pull request #3 from smasty/master

Refactor the SDK

Fix trailing slash in DEFAULT_URL and make logger configurable.

Fix defining logger variable. Fix handling no permission to retrieve …

…attribute and add unit tests for this case.

Added safe handling of API exceptions and created unit tests for API …

…exceptions.

First official release to PyPI.