Merge commit '64d1d6b' into reapply-design-updates-pre-split

wagtail/wagtailadmin/static/wagtailadmin/css/core.less

@@ -19,6 +19,7 @@ max z-index: 5;
 
 html{
     background-color:@color-grey-5;
+    height:100%;
 }
 
 body{

wagtail/wagtaildocs/templates/wagtaildocs/documents/results.html

@@ -1,6 +1,8 @@
 {% if documents %}
     {% if is_searching %}
-        <h2>{{ paginator.count }} match{{ paginator|pluralize:"es" }}</h2>
+        <h2>{{ documents|length }} match{{ documents|pluralize:"es" }}</h2>
+    {% else %}
+        <h2>Latest documents</h2>
     {% endif %}
 
     {% include "wagtaildocs/documents/list.html" %}