v0.3.0

What's Changed

• Fix #47: add mock http server for testing w/o hitting prod site
• update yadu to v0.1.1, fix #46
• added -f to override d-hash, better debug and error handling
• added image diff hash distance caching to not overwrite similar images, that way original images or the ones previously downloaded are preserved
• added support to calculate and store the ad expire date (#43)
• added german documentation (README-de.md)
• added issue templates (including german ones)
• changed image push ci to add a "latest" image
• fixed docker doc part in the README

Full Changelog: v0.0.2...v0.3.0