chore(package): update browserify to version 16.5.0

Closes #53

Author: greenkeeper[bot]

package.json

@@ -25,7 +25,7 @@
   },
   "devDependencies": {
     "blob-to-buffer": "^1.2.6",
-    "browserify": "^14.5.0",
+    "browserify": "^16.5.0",
     "chai": "^4.1.2",
     "dirty-chai": "^2.0.1",
     "eslint": "^4.11.0",