add strip-ansi again

package.json

@@ -66,6 +66,7 @@
     "react-dom": "15.3.2",
     "react-hot-loader": "3.0.0-beta.6",
     "send": "0.14.1",
+    "strip-ansi": "3.0.1",
     "url": "0.11.0",
     "webpack": "1.13.2",
     "webpack-dev-server": "1.16.2",