Merge pull request #24 from benjie/patch-1

Only publish the required files

Author: hjr3

package.json

@@ -30,5 +30,9 @@
     "chai": "^4.1.1",
     "istanbul": "^0.4.5",
     "mocha": "^3.5.0"
-  }
+  },
+  "files": [
+    "index.js",
+    "index.d.ts"
+  ]
 }