Pin cpr to 0.4.1

Author: hughsk

package.json

@@ -23,7 +23,7 @@
     "brfs": "^1.4.0",
     "browserify": "^10.2.4",
     "cheerio": "^0.19.0",
-    "cpr": "^0.4.1",
+    "cpr": "0.4.1",
     "css-modulesify": "^0.3.3",
     "cssnext": "^1.8.1",
     "domify": "^1.3.3",