chore(package): update tslint to version 5.5.0

Closes #30

Author: greenkeeper[bot]

package.json

@@ -47,7 +47,7 @@
     "should": "11.2.1",
     "ts-loader": "2.2.2",
     "tslib": "1.7.1",
-    "tslint": "5.3.2",
+    "tslint": "5.5.0",
     "tslint-loader": "3.5.3",
     "typedoc": "0.7.1",
     "typescript": "2.4.1",