chore(package): update rollup-plugin-node-resolve to version 4.0.1

Closes #12

Author: greenkeeper[bot]

package.json

@@ -95,7 +95,7 @@
     "rollup": "^0.62.0",
     "rollup-plugin-commonjs": "^9.0.0",
     "rollup-plugin-json": "^3.0.0",
-    "rollup-plugin-node-resolve": "^3.0.0",
+    "rollup-plugin-node-resolve": "^4.0.1",
     "rollup-plugin-sourcemaps": "^0.4.2",
     "rollup-plugin-typescript2": "^0.15.1",
     "semantic-release": "^15.6.0",