Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- Gemfile
- app/controllers/api/v1/search_controller.rb
  Conflict because we changed the number of default results to be
  configurable
- app/lib/settings/scoped_settings.rb
  Addition of a new “noindex” site-wide setting,
  conflict due to our change of the two other site-wide settings
  (default flavour and skin instead of theme)
- spec/controllers/application_controller_spec.rb
  Addition of a new “noindex” site-wide setting,
  conflict due to our change of the two other site-wide settings
  (default flavour and skin instead of theme)

app/helpers/application_helper.rb

@@ -77,8 +77,12 @@ module ApplicationHelper
     content_tag(:i, nil, attributes.merge(class: class_names.join(' ')))
   end
 
-  def custom_emoji_tag(custom_emoji)
-    image_tag(custom_emoji.image.url, class: 'emojione', alt: ":#{custom_emoji.shortcode}:")
+  def custom_emoji_tag(custom_emoji, animate = true)
+    if animate
+      image_tag(custom_emoji.image.url, class: 'emojione', alt: ":#{custom_emoji.shortcode}:")
+    else
+      image_tag(custom_emoji.image.url(:static), class: 'emojione custom-emoji', alt: ":#{custom_emoji.shortcode}", 'data-original' => full_asset_url(custom_emoji.image.url), 'data-static' => full_asset_url(custom_emoji.image.url(:static)))
+    end
   end
 
   def opengraph(property, content)