Rename 'ConferenceController' to 'ConferencesController', and 'ProposalController' to 'ProposalsController'

app/views/admin/conferences/_recent_users.html.haml

@@ -0,0 +1,25 @@
+- if recent_users && !recent_users.empty?
+  .table-responsive
+    %table.table
+      %thead
+        %tr
+          %th #
+          %th E-Mail
+          %th Date registered
+          %th Confirmed?
+      - recent_users.each_with_index do |user, index|
+        %tbody
+          %tr
+            %td= index + 1
+            %td= link_to user.email, admin_user_path(user.id)
+            %td= user.created_at.strftime('%m/%d/%Y')
+            %td
+              = check_box_tag user.id, user.id, user.confirmed?, 
+                method: :patch, 
+                url: "/admin/users/#{user.id}/toggle_confirmation?user[to_confirm]=", 
+                class: 'switch-checkbox', 
+                readonly: true,
+                data: { size: 'small', on_color: 'success', off_color: 'warning', on_text: 'Yes', off_text: 'No' } 
+- else
+  %h5.text-warning.text-center
+    No sign ups!