Improve translation compatibility, and allow base_report's 'no pages found' message to be customised using a block

wagtail/admin/templates/wagtailadmin/home/locked_pages.html

@@ -3,7 +3,7 @@
     <div class="panel nice-padding">{# TODO try moving these classes onto the section tag #}
         <section>
             <h2>{% trans "Your locked pages" %}</h2>
-            <a href="{% url 'wagtailadmin_reports:locked_pages' %}" class="button button-small button-secondary">See all locked pages</a>
+            <a href="{% url 'wagtailadmin_reports:locked_pages' %}" class="button button-small button-secondary">{% trans "See all locked pages" %}</a>
             <table class="listing listing-page">
                 <col />
                 <col width="15%"/>

wagtail/admin/templates/wagtailadmin/reports/base_report.html

@@ -14,7 +14,9 @@
                     {% endblock %}
                     {% paginate pages base_url=request.path %}
                 {% else %}
-                    <p>{% trans 'No pages available.' %}</p>
+                    {% block no_results %}
+                        <p>{% trans "No pages match this report's criteria." %}</p>
+                    {% endblock %}
                 {% endif %}
             </div>
         </div>

wagtail/admin/templates/wagtailadmin/reports/locked_pages.html

@@ -1,4 +1,9 @@
 {% extends 'wagtailadmin/reports/base_report.html' %}
+{% load i18n %}
 {% block listing %}
     {% include "wagtailadmin/reports/listing/_list_unlock.html" %}
 {% endblock %}
+
+{% block no_results %}
+    <p>{% trans "No locked pages found." %}</p>
+{% endblock %}

wagtail/admin/views/reports.py

@@ -1,4 +1,4 @@
-from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext_lazy as _
 from django.views.generic.base import TemplateResponseMixin
 from django.views.generic.list import BaseListView