chore(package): update ts-node to version 4.0.1

Closes #26

Author: greenkeeper[bot]

package.json

@@ -22,7 +22,7 @@
     "stream": "0.0.2",
     "tap-spec": "^4.1.1",
     "tape-run": "^3.0.0",
-    "ts-node": "^3.0.3",
+    "ts-node": "^4.0.1",
     "tslint": "^5.2.0",
     "tslint-config-typings": "^0.3.1",
     "typings": "^2.1.1"