Resend confirmation instructions
<%= form_for(resource, :as => resource_name, :url => confirmation_path(resource_name), :html => { :method => :post }) do |f| %>
<%= devise_error_messages! %>
<%= f.label :email %>
<%= f.email_field :email %>
<%= f.submit "Resend confirmation instructions" %>
<% end %>
<%= render "links" %>