0.9.0

Added

• Ability to test delete access via check_credentials or standalone

Changed

• Malformed URL raises on init

Fixed

• testing write access requires delete permission (#11)
• Incorrectly returning True on non 401/404 exceptions on some key-related tests (#5)
• check_credentials now safe from exception when using failsafe=True (#1)
• Requiring python3.8+ (was already not working with 3.6 and 3.7 due to f-string)