babel-preset-es2015@6.14.0 breaks build 🚨#7

greenkeeperio-bot wants to merge 1 commit intomastermicnews/immutable-array-methods:masterfrom

greenkeeper-babel-preset-es2015-6.14.0micnews/immutable-array-methods:greenkeeper-babel-preset-es2015-6.14.0Copy head branch name to clipboard