v9.0.0

Changed

• Update README (#31) (@ralphtheninja)

Added

• Add standard (#29) (@ralphtheninja)
• Add node 9 and 10 (9476e58) (@ralphtheninja)

Removed

• Drop node 0.12, 4, 5 and 7 (9476e58, #32) (@ralphtheninja)

Fixed

• Fix constructor to work without new (#30) (@ralphtheninja)