Add unpkg and style into package.json & Fix ga (#1989)

examples/index.tpl

@@ -19,5 +19,10 @@
 
     ga('create', 'UA-84335471-1', 'auto');
     ga('send', 'pageview');
+
+    window.addEventListener('hashchange', function () {
+      ga('set', 'page', window.location.href);
+      ga('send', 'pageview');
+    });
   </script><% } %>
 </html>

package.json

@@ -41,6 +41,8 @@
   "bugs": {
     "url": "https://github.com/ElemeFE/element/issues"
   },
+  "unpkg": "lib/index.js",
+  "style": "lib/theme-default/index.css",
   "dependencies": {
     "async-validator": "^1.6.6",
     "babel-helper-vue-jsx-merge-props": "^2.0.0",