utilize pre-minified Vue in production since no CJS distribution is available

config/webpack.config.js

@@ -90,8 +90,7 @@ var config = {
       'bootstrap/js':   'bootstrap-sass/assets/javascripts/bootstrap',
       'emoji-aliases$': path.join(ROOT_PATH, 'fixtures/emojis/aliases.json'),
       'vendor':         path.join(ROOT_PATH, 'vendor/assets/javascripts'),
-      'vue$':           'vue/dist/vue.js',
-      'vue-resource$':  'vue-resource/dist/vue-resource.js'
+      'vue$':           IS_PRODUCTION ? 'vue/dist/vue.min.js' : 'vue/dist/vue.js',
     }
   }
 }