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

Conflicts:
	app/views/layouts/application.html.haml

Edited:
        app/helpers/application_helper.rb
        app/views/admin/domain_blocks/new.html.haml

Conflict wasn't really one, just two changes too close to one another.
Edition was to adapt the class names for themes to class names for
skins and flavours.

Also edited app/views/admin/domain_blocks/new.html.haml to strip the
duplicate admin pack inclusion thing.

spec/helpers/application_helper_spec.rb

@@ -17,7 +17,7 @@ describe ApplicationHelper do
     end
   end
 
-  describe 'add_rtl_body_class' do
+  describe 'locale_direction' do
     around do |example|
       current_locale = I18n.locale
       example.run
@@ -26,22 +26,22 @@ describe ApplicationHelper do
 
     it 'adds rtl body class if locale is Arabic' do
       I18n.locale = :ar
-      expect(helper.add_rtl_body_class('other classes')).to eq 'other classes rtl'
+      expect(helper.locale_direction).to eq 'rtl'
     end
 
     it 'adds rtl body class if locale is Farsi' do
       I18n.locale = :fa
-      expect(helper.add_rtl_body_class('other classes')).to eq 'other classes rtl'
+      expect(helper.locale_direction).to eq 'rtl'
     end
 
     it 'adds rtl if locale is Hebrew' do
       I18n.locale = :he
-      expect(helper.add_rtl_body_class('other classes')).to eq 'other classes rtl'
+      expect(helper.locale_direction).to eq 'rtl'
     end
 
     it 'does not add rtl if locale is Thai' do
       I18n.locale = :th
-      expect(helper.add_rtl_body_class('other classes')).to eq 'other classes'
+      expect(helper.locale_direction).to_not eq 'rtl'
     end
   end