chore(package): update nodemon to version 1.19.1

Closes #71

Author: greenkeeper[bot]

package.json

@@ -89,7 +89,7 @@
     "husky": "1.2.0",
     "lint-staged": "8.1.0",
     "mocha": "5.2.0",
-    "nodemon": "1.18.7",
+    "nodemon": "1.19.1",
     "prettier": "1.15.2",
     "rimraf": "2.6.2",
     "tslint": "5.11.0",