Merge pull request #1113 from timorieber/bugfix/import-pageurl-in-docs

pageurl tag library was renamed to wagtailcore since 0.4

docs/search/searching.rst

@@ -96,7 +96,7 @@ Next, let's look at the template itself:
 .. code-block:: django
 
   {% extends "mysite/base.html" %}
-  {% load pageurl %}
+  {% load wagtailcore_tags %}
 
   {% block title %}Search{% if search_results %} Results{% endif %}{% endblock %}