chore(package): update rollup-plugin-node-resolve to version 5.1.0

Closes #55

Author: greenkeeper[bot]

package.json

@@ -41,7 +41,7 @@
     "glob": "~7.1.2",
     "camelcase": "~5.0.0",
     "rollup": "~0.42.0",
-    "rollup-plugin-node-resolve": "~3.3.0",
+    "rollup-plugin-node-resolve": "~5.1.0",
     "rollup-plugin-commonjs": "~8.3.0",
     "rollup-plugin-sourcemaps": "~0.4.2",
     "rollup-plugin-uglify": "~3.0.0",