• Added the Option named constructor. (@NAlexPear)
• Added support for the canvas-prebuilt npm package as an alternative to canvas. (@asturur)
• Fixed setTimeout() and setInterval() to always return a positive integer, instead of returning 0 the first time were called. (@yefremov)
• Fixed jsdom.env() to preserve URL fragments across redirects. (@josephfrazier)
• Fixed optionEl.text and optionEl.value to be more spec-compliant.
• Fixed event.stopImmediatePropagation() to actually stop immediate propagation, not just propagation.
• Fixed clearTimeout() and clearInterval() to work correctly when using jsdom browserified.