v0.1.1

Toolchain and CI updates

Full Changelog: v0.1.0...v0.1.1

v0.1.0

Changelog

7d55a61 Use goreleaser for builds
261f61f gofmt
5794555 Add extra error about missing acme_dns_url
031dddd Initial implementation

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Built with go version go1.9 windows/amd64