update authentication system to Devise

app/views/devise/confirmations/new.html.erb

@@ -0,0 +1,13 @@
+<h2>Resend confirmation instructions</h2>
+
+<%= form_for(resource, :as => resource_name, :url => confirmation_path(resource_name), :html => { :method => :post }) do |f| %>
+  <%= devise_error_messages! %>
+
+  <div><%= f.label :login %><br>
+  <%= f.text_field :login, :autofocus => true %></div>
+
+  <div><%= f.submit "Resend confirmation instructions" %></div>
+<% end %>
+
+<%= render "devise/shared/links" %>
+