fix(package): update @angular/router to version 6.0.3

Closes #29

Author: greenkeeper[bot]

package.json

@@ -26,7 +26,7 @@
     "@angular/http": "^5.2.6",
     "@angular/platform-browser": "^5.2.6",
     "@angular/platform-browser-dynamic": "^5.2.6",
-    "@angular/router": "^5.2.6",
+    "@angular/router": "^6.0.3",
     "body-parser": "^1.18.2",
     "chai": "^4.1.2",
     "chai-http": "^3.0.0",