Switch from babel-preset-latest to babel-preset-env

Author: gakimball

.babelrc

@@ -1,3 +1,10 @@
 {
-  "presets": ["latest", "react"]
+  "presets": [
+    ["env", {
+      "targets": {
+        "node": "current"
+      }
+    }],
+    "react"
+  ]
 }