ember-cli 3.15.2

on Node.js NPM

Blueprint Changes

• ember new diff
• ember addon diff

Changelog

• #8924 Fix named UMD imports @kellyselden
• #9015 Allow failure of Node 8 CI jobs. @rwjblue
• #9014 Avoid errors when ui is not present and a warning will be emitted. @tmquinn

Thank you to all who took the time to contribute!