v0.3.0: Merge pull request #12 from dokku/master

Release 0.3.0

v0.2.2

• fix: correctly handle image that has been tagged twice
• fix: add packagecloud token to env vars

v0.2.1

• Run CI on github actions
• Add bats tests
• Add repo tags as com.dokku.docker-image-labeler/alternate-tags label to built image
• Do not attempt to delete in use images

v0.2.0

• ensure help output has binary name
• handle cases where label has no value
• do not pull images when there are repo tags
• remove whitespace from readme

v0.1.0

Initial release