Update prepublish script.

Author: hperrin

package.json

@@ -41,7 +41,7 @@
     "build-cleanup": "node cleanup.js",
     "watch": "ENV=development webpack --watch",
     "deploy": "git checkout gh-pages && git merge develop && rm -rf ./dist/ && npm run build && npm run build-dev && git add . && git commit -m 'Update built files.' && git push && git checkout develop",
-    "prepare-off": "npm run lint && npm run build",
+    "prepublish": "rm -rf ./dist/ && npm run build",
     "lint": "eslint index.html make.js src/*.html src/*.js demo/*"
   },
   "devDependencies": {