adding in es2015 preset - the only fix for ui storybook on my computer
adding in es2015 preset - the only fix for ui storybook on my computer

yldio/joyent-portal,yldio/copilot,yldio/copilot,yldio/copilot,geek/joyent-portal,yldio/joyent-portal,geek/joyent-portal