Release 4.0.0

Breaking changes

• The output directory is now specified as an --output flag instead of a positional argument on the CLI. This means get-node VERSION OUTPUT should now be get-node --output=OUTPUT VERSION.

Features

• Add --help and --version CLI flags
• Add --progress CLI flag
• Add --mirror option
• Improve CLI spinner

Bugs

• Fix error messages not printed correctly (50128cd)