lock webpack version

Author: dyu

template/package.json

@@ -36,8 +36,8 @@
     "vue-html-loader": "^1.2.3",
     "vue-loader": "^8.5.2",
     "vue-style-loader": "^1.0.0",
-    "webpack": "^2.1.0-beta.25",
+    "webpack": "2.1.0-beta.25",
     "webpack-closure-compiler": "2.0.2",
-    "webpack-dev-server": "^2.1.0-beta.0"
+    "webpack-dev-server": "2.1.0-beta.10"
   }
 }