Make the 'X Pages/Images/Documents' stats links

They link to the relevant sections of the admin, allowing for quick
jumping around.

wagtail/wagtailadmin/static/wagtailadmin/scss/layouts/home.scss

@@ -46,6 +46,13 @@ header{
             }
         }
 
+        a{
+            position:relative;
+            display:block;
+            width:100%;
+            height:100%;
+        }
+
         span{
             font-family:Bitter, Georgia, serif;
             display:block;

wagtail/wagtailadmin/templates/wagtailadmin/home/site_summary.html

@@ -3,25 +3,31 @@
     <h2 class="visuallyhidden">{% trans "Site summary" %}</h2>
     <ul class="stats">
         <li class="icon icon-doc-empty-inverse">
+            <a href="{% url 'wagtailadmin_explore' root_page.pk %}">
             {% blocktrans count counter=total_pages %}
                 <span>{{ total_pages }}</span> Page
             {% plural %}
                 <span>{{ total_pages }}</span> Pages
             {% endblocktrans %}
+            </a>
         </li>
         <li class="icon icon-image">
+            <a href="{% url 'wagtailimages_index' %}">
             {% blocktrans count counter=total_images %}
                 <span>{{ total_images }}</span> Image
             {% plural %}
                 <span>{{ total_images }}</span> Images
             {% endblocktrans %}
+            </a>
         </li>
         <li class="icon icon-doc-full-inverse">
+            <a href="{% url 'wagtaildocs_index' %}">
             {% blocktrans count counter=total_docs %}
                 <span>{{ total_docs }}</span> Document
             {% plural %}
                 <span>{{ total_docs }}</span> Documents
             {% endblocktrans %}
+            </a>
         </li>
     </ul>
-</section>
+</section>

wagtail/wagtailadmin/views/home.py

@@ -7,7 +7,7 @@ from django.template.loader import render_to_string
 from wagtail.wagtailadmin import hooks
 from wagtail.wagtailadmin.forms import SearchForm
 
-from wagtail.wagtailcore.models import Page, PageRevision, UserPagePermissionsProxy
+from wagtail.wagtailcore.models import Site, Page, PageRevision, UserPagePermissionsProxy
 
 from wagtail.wagtaildocs.models import Document
 
@@ -27,6 +27,7 @@ class SiteSummaryPanel(object):
             'total_pages': Page.objects.count() - 1,  # subtract 1 because the root node is not a real page
             'total_images': get_image_model().objects.count(),
             'total_docs': Document.objects.count(),
+            'root_page': Site.find_for_request(self.request).root_page,
             'search_form': SearchForm(),
         }, RequestContext(self.request))