Reveal trashcan after holding mousedown on a card for a half second.
Make trashcan area full width at bottom of canvas.
Delete selected cards that are dropped in the trash area.
Fade out deleted cards.
Deleted expanding.js CSS overrides.
Fix laggy drop validation caused by mouseup event being bound dozens/hundreds of times.
Bind drop-handling mouseup exactly once.
Note end of big each loop.
Prevent CSS transform parsing and drag checking from happening after a single click.
Restore transitions on dragged cards.
Animate card create.
Add shrinking animation to deleted cards too.
Change transition timing function to ease-out.
Delete redundant transition declaration.
Add vendor prefixes.
Add vendor prefixes when setting transform in JS.
Fix .notransition values.
Fix card drag in FF.
Put transition timings and timing functions in vars.
Added trash icon to trash drop area.