chore(package): update tslint to version 5.2.0

Closes #30

Author: greenkeeper[bot]

package.json

@@ -44,7 +44,7 @@
     "should": "11.2.1",
     "ts-loader": "2.0.3",
     "tslib": "1.6.1",
-    "tslint": "5.1.0",
+    "tslint": "5.2.0",
     "tslint-loader": "3.5.3",
     "typedoc": "0.6.0",
     "typescript": "2.3.2",