[release] 3.0.0

package.json

 {
-  "name": "juicy",
-  "version": "2.2.1",
+  "name": "vue-element-admin",
+  "version": "3.0.0",
   "description": "A Vue.js admin",
   "author": "Pan <panfree23@gmail.com>",
   "license": "MIT",