Merge pull request #11 from apiaryio/dependabot/npm_and_yarn/chai-4.2.0

Update chai requirement from 1.7.1 to 4.2.0

Author: honzajavorek

package.json

@@ -15,7 +15,7 @@
   "devDependencies": {
     "coffee-script": "1.6.3",
     "mocha": "1.11.0",
-    "chai": "1.7.1",
+    "chai": "4.2.0",
     "curl-trace-parser": ""
   },
   "engines": {