Fix bug: User cannot connect using the orbit button (Devise configuration)

app/views/layouts/_orbit_bar.html.erb

@@ -90,7 +90,7 @@
 									<li>
 										<div class="input-prepend">
 											<span class="add-on"><i class="icon-user"></i></span>
-											<%= f.text_field :nccu_ldap_uid, :class => 'span2', :placeholder => t('nccu_c.nccu_ldap_uid'), :size => 16 %>
+											<%= f.text_field :email, :class => 'span2', :placeholder => t(:email), :size => 16 %>
 										</div>
 									</li>
 									<li>