fix(package): update chalk to version 2.0.0 (#9)

Author: greenkeeper[bot]

package.json

@@ -17,7 +17,7 @@
   "dependencies": {
     "JSONPath": "^0.11.2",
     "bluebird": "^3.3.1",
-    "chalk": "^1.1.1",
+    "chalk": "^2.0.0",
     "elegant-spinner": "^1.0.1",
     "humanize": "^0.0.9",
     "log-symbols": "^1.0.2",