2.2.0

• bugs squashed
• Dropdown widgets are now Groupable, allowing for <optgroup> like behaviour, check out the demo docs for an example
• Widgets with dropdowns now expose a listComponent prop which provides an added extensibility point for advanced use
• DateTimePicker now also exposes a onSelect handler prop
• the internal animate function now uses translateY for popup open and close animations, while still maintaining an api that is a drop-in replacement for $.animate (for older browser support)
• dropdown list styles have been moved out of the component and into css