Clear Destination

When running a filter, mirrorman now makes sure that the destination path is clear.

This should make writing filters easier, you no longer need to overwrite the destination path.

Full Changelog: v0.2.6...v0.3.0

Flush Progress Bar

Now flush progress bar after each entry.

Full Changelog: v0.2.5...v0.2.6

Progress Bar

New progress bar during database sync.

Full Changelog: v0.2.4...v0.2.5

Better Logging and Error Propagation

Now using pretty_env_logger and anyhow under the hood.

Included example filter now silences ffmpeg output.