Log Message:
py-hsm: updated to 1.2.1

Version 1.2.1:
* Fixup release: Remove minimum version for sqlalchemy dependency which was
    set too high.
* yhsm-yubikey-ksm: Add --proxy/--proxies argument for logging proxies
    requests.

Version 1.2.0:
* yhsm-validation-server: Support OATH TOTP.
* yhsm-init-oath-token: Handle keys with length != 20.
* yhsm-yubikey-ksm: Allow passing soft-HSM keys via stdin by passing "-" as
    device argument.
* yhsm-yubikey-ksm: Allow passing --db-url via environment variable.
* Moved utils, yubikey-ksm and validation-server to be included when
    installing using pip.
* Use entry_point scripts generated by setuptools.
* Moved man pages to man/ directory.
* Bugfix: Fix AEAD generation on Windows by writing in binary mode.
* Bugfix: Support AEADs generated on Windows using pyhsm <= 1.1.1.
* Bugfix: Avoid installing unit test package.
* Bugfix: yhsm-import-keys: Fix --aes-key argument used when importing
    without a YubiHSM.

Version 1.1.1:
* Fixup release.

Version 1.1.0:
* Restructured the repository and build process.
* Use Semantic Versioning (semver.org).
* Added support for a "soft" HSM in yhsm-yubikey-ksm, yhsm-import-keys
    and yhsm-generate-keys.

Version 1.0.4l:
* Documentation is now in asciidoc format.
* yhsm-yubikey-ksm: Fix bug when the same public ID occured for multiple
    keyhandles.