0.0.20
Changelog
f7b6fad add circleci integration.
cc0722b correct docker image references and changelog.
b84f09c correct tests for missing provider and backup dir.
fbc72d3 correct typo in docker image.
f3586b2 fix badges.
5a86655 lint.
a12ee37 publish docker image as latest, in addition to tag.
15c95ed publish docker image to docker hub.
f8686df replace deprecated MAINTAINER.
231c19e update githosts-utils dependency to improve error handling.