2.2.0

Added

• Add has_errors_or_warnings method to ProgressReport class.

Fixed

• Ensure b2sdk.v2.b2http emits b2sdk.v2.BucketIdNotFound exception instead of b2sdk._v3.BucketIdNotFound. (#437)
• Ensure unprintable_to_hex and unprintable_to_hex return empty string (instead of None) if empty string was supplied as argument.
• Skip files with invalid filenames when scanning directories (for sync, ...) instead of raising an exception.