• Update Feather icons
• Add TransitionManager
• Normalize CSS hover styles
• [FormGroup] set nested CustomSelect to fluid
• [Callout] add onDismiss icon
• [EmptyState] allow arbitrary icons, center content text
• [CustomSelect]
  • change to inline-block style
  • handle keyboard navigation for disabled options
• [BaseControl] add optional containerAttrs attr
• [Button] add outlined attr
• [ButtonGroup] add outlined attr
• [QueryList]
  • prevent onSelect when item has disabled=true attrs
  • update empty list message styles
  • remove bottom border from list items
• [Toast]
  • fix dismiss icon hover color
  • pass through style attr to Overlay
• [Overlay] set restoreFocus=false by default, set shouldRender=false in onremove
• [Tree] pass through html attrs
• [SelectList] pass through popover class
• [List] add interactive attr
• [Tag]
  • lighten default bg color and add border
  • allow children to be passed to label attr
• [Icon] fix intent class specificity
• [TagInput] prevent tab focus when disabled