Merge pull request Netflix#1372 from castrapel/acme_validation_dns_pr…

…ovider_option

R53: Extend only TXT records

6.0 release. (Netflix#1033)

Pinning version of PyOpenSSL Netflix#873

0.5 Release (Netflix#750)

Closes: Netflix#469 (Netflix#510)

release bump (Netflix#348)

Merge pull request #241 from kevgliss/0.2.2.release

adding changelog

Merge pull request #190 from kevgliss/0.2.1

0.2.1 release info

Merge pull request #167 from forkd/master

minor changes in quickstart guide

Merge pull request #129 from kevgliss/version

Version bump and needed documentation.