<div class="alert <%= alert.severity.downcase %>">
  <%= alert.message %> <%= link_to alert.url_name, alert.url if alert.url %>
  <%= link_to 'X', dismiss_alert_admin_general_settings_path(:alert_id => alert.id),
              :remote => true, :method => :post, :class => 'dismiss' %>
</div>

<div class="alert <%= alert.severity.downcase %>">
  <%= alert.message %> <%= link_to alert.url_name, alert.url if alert.url %>
  <%= link_to 'X', spree.dismiss_alert_admin_general_settings_path(:alert_id => alert.id),
              :remote => true, :method => :post, :class => 'dismiss' %>
</div>

Fix route reference in shared/_alert so that it can be shared
Fix route reference in shared/_alert so that it can be shared

Causes errors in custom admin sections otherwise.

Fixes #2564
