chore(package): update brfs to version 2.0.1

Closes #40

Author: greenkeeper[bot]

package.json

@@ -5,7 +5,7 @@
   "bin": "./bin/cli.js",
   "dependencies": {},
   "devDependencies": {
-    "brfs": "^1.3.0",
+    "brfs": "^2.0.1",
     "linify": "^1.0.1",
     "mocha": "*",
     "uglify-js": "^3.3.15"