display device type names on Feature Manager

mkt/site/helpers.py

@@ -161,7 +161,7 @@ def promo_slider(context, products, feature=False):
     c = {
         'products': products,
         'feature': feature,
-        'request': request,
+        'request': context['request'],
     }
     t = env.get_template('site/promo_slider.html')
     return jinja2.Markup(t.render(c))
@@ -239,7 +239,7 @@ def admin_site_links():
     return {
         'addons': [
             ('Search for apps by name or id', reverse('zadmin.addon-search')),
-            ('Featured add-ons', reverse('zadmin.featured_apps')),
+            ('Featured apps', reverse('zadmin.featured_apps')),
             ('Fake mail', reverse('zadmin.mail')),
             ('Flagged reviews', reverse('zadmin.flagged')),
         ],

mkt/zadmin/templates/zadmin/featured_apps_ajax.html

@@ -7,7 +7,7 @@
         <td><img src="{{ row.app.icon_url }}"></td>
         <td>{{ row.app.name }}</td>
         <td>{% for dt in row.app.device_types %}
-          {{ dt }}
+          {{ dt.name }}{% if not loop.last %}, {% endif%}
           {% endfor %}</td>
       </tr>
       <tr>