Update 'layout' example for bootstrap3.

examples/layout/app.py

@@ -58,7 +58,7 @@ def index():
 
 
 # Create admin with custom base template
-admin = admin.Admin(app, 'Example: Layout', base_template='layout.html')
+admin = admin.Admin(app, 'Example: Layout', base_template='layout.html', template_mode='bootstrap3')
 
 # Add views
 admin.add_view(UserAdmin(User, db.session))

examples/layout/templates/admin/index.html

@@ -12,6 +12,6 @@
     <p>
         This is done by overriding some of the built-in templates.
     </p>
-    <a class="btn btn-primary" href="/"><i class="icon-arrow-left icon-white"></i> Back</a>
+    <a class="btn btn-primary" href="/"><i class="glyphicon glyphicon-arrow-left"></i> Back</a>
 </div>
 {% endblock body %}

examples/layout/templates/layout.html

@@ -7,15 +7,15 @@
 {% endblock %}
 
 {% block page_body %}
-<div class="container">
+<div class="container-fluid">
   <div class="row">
-    <div class="span2">
+    <div class="col-sm-3">
       <ul class="nav nav-pills nav-stacked">
         {{ layout.menu() }}
         {{ layout.menu_links() }}
       </ul>
     </div>
-    <div class="span10">
+    <div class="col-sm-9">
       <div id="content">
         {% block brand %}
           <h2 id="brand">{{ admin_view.name|capitalize }}</h2>