fix(package): update axios to version 0.16.1

Closes #13

https://greenkeeper.io/

Author: greenkeeper[bot]

package.json

@@ -23,7 +23,7 @@
   "author": "Josh Perez <[email protected]>",
   "license": "MIT",
   "dependencies": {
-    "axios": "^0.15.3",
+    "axios": "^0.16.1",
     "object.values": "^1.0.4"
   },
   "devDependencies": {