15.1.0

Adds support for:

• books.ottolenghi.co.uk (#1227)
• celebratingsweets.com (#1196)
• ingoodflavor.com (#1196)
• kalejunkie.com (#1204)
• kitchendreaming.com (#1196)
• leitesculinaria.com (#1196)
• myvegetarianroots.com (#1196)
• peelwithzeal.com (#1196)
• sandwichtribunal.com (#1196)

Improvements:

• streetkitchen.hu: additional field retrievals (#1183)
• whatsgabycooking.com: ingredient group support (#1210)

Bugfixes:

• streetkitchen.hu: field retrieval fixups (#1183)

Thank you, @bartaldavid @jknndy @tomtjes!