Release 8.1.0

Changed

• Renamed type to waste_type in calendar output
• Accept sort parameter type (mapped to waste_type)

Added

• More tests for embrach, bassersdorf, duebendorf, wangen-bruttisellen
• Tests for error conditions

Fixed

• There was a typo in the ZIP code of embrach, it should be 8424 instead of 8484.
• Return error (incl. HTTP error code) when a query fails