Add a map

So you can check you’ve chosen the right areas, and to give you a clear
idea of where the boundaries of an area are.

The Javascript and CSS for the map is only loaded on this page because
it adds quite a few kb, and we don’t want to be sending assets to the
majority of our users who will never see them.

app/templates/admin_template.html

@@ -14,6 +14,8 @@
 {% block head %}
   <link rel="stylesheet" media="screen" href="{{ asset_url('stylesheets/main.css') }}" />
   <link rel="stylesheet" media="print" href="{{ asset_url('stylesheets/print.css') }}" />
+  {% block extra_stylesheets %}
+  {% endblock %}
   <style>
       .govuk-header__container { border-color: {{header_colour}} }
   </style>
@@ -251,6 +253,8 @@
 {% endblock %}
 
 {% block bodyEnd %}
+  {% block extra_javascripts %}
+  {% endblock %}
   <!--[if gt IE 8]><!-->
   <script type="text/javascript" src="{{ asset_url('javascripts/all.js') }}"></script>
   <!--<![endif]-->