Merge pull request #21 from froonix/development

Release v0.3.0

Release 0.2.1

Release 0.2.0

Release 0.1.3

* Cross-merge changes from acme-dns-nc (closes #13, closes #14, closes #15)
* Use message.poll instead of account.info for session check (closes #5)
* Update testscript (closes #16)
* Fix persistent connections
* Update README

Release 0.1.2

* new persistent session storage (optional; see ini file)

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