v0.12.0

News

Another release, another new member on the team: Please welcome @arnoson, who has
worked hard on the all new animation support, exposed through the Tween class
and its various methods on the Item class, see below for details:

Added

• Add new Tween class and related methods on Item, to animate and
  interpolate their various properties, including colors, sub-properties, etc.:
  Item#tween(from, to, options), Item#tween(to, options),
  Item#tween(options), Item#tweenFrom(from, options),
  Item#tweenTo(to, options)

Fixed

• Only draw Raster if image is not empty (#1320).
• Emit mousedrag events on correct items when covered by other items (#1465).
• Fix drawing issues of bounds and position with Group#selectedColor (#1571).
• Fix Item.once() to actually only emit event once.
• Various documentation fixes and improvements (#1399).