Upgrade dependencies

Added

• Upgrade all dependencies (csstype and free-style)

Handle `insertRule` errors

Fixed

• Handle insertRule errors on unknown syntax 5326eb0

Upgrade Free Style

Changed

• Upgrade to free-style@4
• Remove dist/tags as unused
• Remove dist/jsx in favor of root export, e.g. import { jsx } from 'react-free-style'

Fix `styled` ref

Fixed

• Fix inferred return type of styled for ref props

Allow multiple CSS values

Added

• Allow multiple CSS values over arrays

Fixed

• Allow undefined and null for CSS values

Recursive Computed CSS

Added

• Allow ComputedCss to be recursive
• Move JSX support into core package

Fix TypeScript Expansion Issue

Fixed

• Fix TypeScript expanding toComponent return type into an invalid type

Make `toComponent` Props Optional

Fixed

• Make toComponent(props?) optional

Smaller Build

Changed

• Bump target ES version to ES2015 (removes 10kb)
• Remove STYLE_ID concept from rendering (removes another 10kb)

Extend Styles Type

Fixed

• Extends Styles from Free Style for $* props in type information