v3.9.0

Added

• Add jsx-key rule (#293 @benmosher)
• Add allow-in-func option to no-did-update-set-state (#300)
• Add option to only enforce jsx-closing-bracket-location rule to one type of tag (nonEmpty or selfClosing) (#307)

Fixed

• Fix crash when destructuring with only the rest spread (#269)
• Fix variables detection when searching for related components (#303)
• Fix no-unknown-property to not check custom elements (#308 @zertosh)

Changed

• Improve jsx-closing-bracket-location error message (#301 @alopatin)
• Update dependencies