Updated deps

Author: swernerx

package.json

@@ -57,9 +57,9 @@
     "babel-cli": "^6.24.1",
     "babel-core": "^6.24.1",
     "babel-plugin-transform-runtime": "^6.23.0",
-    "babel-preset-env": "^1.4.0",
+    "babel-preset-env": "^1.5.1",
     "babel-register": "^6.24.1",
-    "espower": "^2.0.3",
+    "espower": "^2.1.0",
     "flow-bin": "^0.46.0",
     "fs-extra": "^3.0.1",
     "prepublish": "^0.16.0",