fix(package): update typeorm to version 0.2.19

Closes #169

Author: greenkeeper[bot]

package.json

@@ -139,7 +139,7 @@
     "ts-node": "8.1.0",
     "tsconfig-paths": "3.8.0",
     "typedoc": "0.14.2",
-    "typeorm": "0.2.17",
+    "typeorm": "0.2.19",
     "typescript": "3.2.2"
   },
   "devDependencies": {