update bundle configs

package.json

@@ -4,7 +4,8 @@
   "description": "record and replay the web",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "bundle": "rollup --config"
   },
   "repository": {
     "type": "git",
@@ -20,6 +21,10 @@
   },
   "homepage": "https://github.com/rrweb-io/rrweb#readme",
   "devDependencies": {
+    "rollup": "^0.66.6",
+    "rollup-plugin-node-resolve": "^3.4.0",
+    "rollup-plugin-typescript": "^1.0.0",
+    "tslib": "^1.9.3",
     "tslint": "^4.5.1",
     "typescript": "^3.1.1"
   },