More Key Bundle fixes

• Add ignore_invalid_keys parameter (default True) to KeyBundle
• Fix Exception formatting

Key Bundle fixes

• add ignore_errors_period option to KeyBundle for setting optional error hold down period
• fix issue with key activation/inactivation for KeyBundle remote sources

Dependency fixes for Cryptography

• Fix bug in iqmp calculation (fix from @c00kiemon5ter)
• More code reformatting
• Check formatting via tox
• Use Python 3.8 for quality testing

Algorithm support fixes, key storage and style

• Try to have the same support for different cryptographic algorithm.
• Added black and made it work with isort.
• Support for persistent storage in KeyJar.

Major release

The background to the changes in this release is the need to be able to store dynamic information in a persistent way.
While doing that work splitting the KeyJar class into KeyJar and KeyIssuer became worthwhile.
There was also an inconsistency when it came to the parameter name for the issuer identifier.
Sometimes it was issuer sometimes owner. Changed that into always be issuer_id.

Maintenance release

• Re-read KeyBundle local files if modified
• Honor If-Modified-Since header on KeyBundle HTTP fetch
• Add key wrapping/unwrapping utility functions

Maintenance release

0.7.17

Editorial

Maintenance release

0.7.16

Editorial

Maintenance

Merge pull request #27 from peppelinux/master

replaced try/except with get

Maintenance release

0.7.14

Release version