v1.4.0

Maintenance release 🔧

• move CI from travis to GH actions
• bump minimum required ruby version to 2.6.0 (same as Wordmove)
• reintroduced rubocop (in CI too) and fixed all the code as per its notes
• update dependencies

A lot of kudos go to @korkey128k for his original PR #22. Thanks to updated dependencies Photocopier now should be able to fully support ed25519 ssh keys.

v1.3.1

• 1f0a4f8 fix honour passive ftp option

v.1.3.0

SFTP support

Thans to @xwulfus who opened #21 , we decided to support SFTP protocol with this release.