add lerna

lerna.json

@@ -0,0 +1,7 @@
+{
+  "lerna": "2.0.0-rc.5",
+  "packages": [
+    "packages/*"
+  ],
+  "version": "0.0.0"
+}

package.json

@@ -20,6 +20,7 @@
     "themes"
   ],
   "scripts": {
+    "bootstrap": "npm i && lerna bootstrap",
     "build": "rm -rf lib themes && node build/build && mkdir lib/themes && mkdir themes && node build/build-css && npm run build:ssr && node build/build-cover",
     "dev:build": "rm -rf lib themes && mkdir themes && node build/build --dev && node build/build-css --dev",
     "dev": "node app & nodemon -w src -e js,css --exec 'npm run dev:build'",
@@ -39,6 +40,7 @@
     "eslint": "^3.18.0",
     "eslint-config-vue": "^2.0.2",
     "eslint-plugin-vue": "^2.0.1",
+    "lerna": "^2.0.0-rc.5",
     "nodemon": "^1.11.0",
     "postcss": "^5.2.16",
     "postcss-salad": "^1.0.8",