ciecplib 0.7.0
Major development release.
Backwards-incompatible changes:
-   [https://github.com/duncanmmacleod/ciecplib/pull/113]
    Refactor X.509 handling to use `cryptography`
    Usage through the entry points or `ciecplib.tool` is unaffected,
    while all other functions now accept and return `cryptography` objects
    rather than M2Crypto or pyOpenSSL objects.
    pyOpenSSL is still used on old systems (RHEL 7/8) to accommodate very
    old versions of `cryptography`.
The full list of all changes related to this milestone can be seen at
<https://github.com/duncanmmacleod/ciecplib/pulls?q=milestone:0.7.0>.