Director 0.13.0

What's Changed

• Prepare Director for a public repository by @Xarishark in #11
• Start every file format at version 1 by @Xarishark in #12
• Group the source into folders by @Xarishark in #13
• README: highlights, screenshot slideshow and a feature request form by @Xarishark in #14
• Release 0.13.0 by @Xarishark in #15

Full Changelog: v0.12.0...v0.13.0