update to vue 2.0.3 (#509)

Author: defcc

src/guide/installation.md

@@ -2,10 +2,10 @@
 title: Installation
 type: guide
 order: 1
-vue_version: 2.0.1
-dev_size: "184.49"
-min_size: "61.72"
-gz_size: "22.58"
+vue_version: 2.0.3
+dev_size: "188.88"
+min_size: "62.54"
+gz_size: "22.86"
 ---
 
 ### Compatibility Note

themes/vue/_config.yml

@@ -1,3 +1,3 @@
 google_analytics: UA-46852172-1
 root_domain: vuejs.org
-vue_version: 2.0.1
+vue_version: 2.0.3