emit code that doesn't need regeneratorRuntime

Author: sqs

package.json

@@ -98,5 +98,11 @@
         }
       }
     }
-  }
+  },
+  "browserslist": [
+    "last 1 Chrome versions",
+    "last 1 Firefox versions",
+    "last 1 Edge versions",
+    "last 1 Safari versions"
+  ]
 }