• Dropped built-in fast-click support in favor of modern touch-action property. If you still need it in browsers that have 300ms delay, use FastClick by FT Labs.
• Dropped basic IE7 support (if you still need to support old IE, keep using the previous version).
• Sanitized attributes with jQuery when replacing img element (#770 via @makkaq).
• Added 'style' property to package.json (#816 via @jonscottclark).
• Removed vendor prefixes for box-sizing and box-shadow (via @chicagoing).