0.3.0

• switched to Go 1.13 & modules

• removed Skopeo submodule: The Skopeo project is phasing out static builds, so the previous approach of building a FROM scratch image for dregsy with just the two binaries no longer works. Instead, Alpine is now used as the base, and Skopeo is installed during image build via apk (see Dockerfile for version information).

  Important - breaking change: The dregsy binary is now located at /usr/local/bin inside the image. You may need to adjust how you invoke dregsy.

• support for AWS China ECR

• doc updates

• fix for issue #4: canonicalize image refs before matching