Create a shared concers/ namespace for encoders
Move away from a shared concern a method used only in the Libre encoder
Change wrong action name in the libre encoder
Display stdout / stderr messages when conversion fails with libreoffice
Embrace a shotgun, for development
Display also the executed command in error messages
Whitespace
Restore wkhtmltopdf dependency, as distribution-supplied binaries miss important features
Add ability to return executed commands' stdout and stderr
Do not fetch URLs from Dragonfly, let wkhtmltopdf handle it instead
Kill PDFKit - use wkhtmltopdf directly through the Executioner
Use Open3 in the executioner, to handle large stdout streams