Merge pull request paritytech#4 from ngotchac/patch-1

Use prepublishOnly instead of prepublish

Author: gavofyork

package.json

@@ -11,7 +11,7 @@
   "scripts": {
     "test": "npm run compile && mocha --compilers js:babel-core/register  --reporter spec",
     "compile": "babel --presets es2015 -d lib/ src/",
-    "prepublish": "../oo7/prepublish.sh && npm run compile",
+    "prepublishOnly": "../oo7/prepublish.sh && npm run compile",
     "postpublish": "../oo7/postpublish.sh"
   },
   "repository": {