Erased extra empty HTML for comments without replies. Added .gitignore rules for Netbeans projects

Cambios para hacer commit:
	modificado:    .gitignore
	modificado:    app/assets/javascripts/comments.js.coffee
	modificado:    app/views/comments/_comment.html.erb
	modificado:    spec/features/comments/debates_spec.rb

.gitignore

@@ -32,3 +32,6 @@
 
 public/sitemap.xml
 public/system/
+
+#Netbeans projects files
+/nbproject

app/assets/javascripts/comments.js.coffee

@@ -5,6 +5,8 @@ App.Comments =
     this.update_comments_count()
 
   add_reply: (parent_id, response_html) ->
+    if $("##{parent_id} .comment-children").length == 0
+      $("##{parent_id}").append("<li><ul id='#{parent_id}_children' class='no-bullet comment-children'></ul></li>")
     $("##{parent_id} .comment-children:first").prepend($(response_html))
     this.update_comments_count()
 

app/views/comments/_comment.html.erb

@@ -93,6 +93,7 @@
         </div>
       <% end %>
     </li>
+    <%unless child_comments_of(comment).empty?%>
     <li>
       <ul id="<%= dom_id(comment) %>_children" class="no-bullet comment-children">
         <% child_comments_of(comment).each do |child| %>
@@ -102,5 +103,6 @@
         <% end %>
       </ul>
     </li>
+    <%end%>
   </ul>
 <% end %>

spec/features/comments/debates_spec.rb

@@ -33,6 +33,10 @@ feature 'Commenting debates' do
     expect(page).to have_content second_child.body
 
     expect(page).to have_link "Go back to #{debate.title}", href: debate_path(debate)
+    
+    expect(page).to have_selector("ul#comment_#{parent_comment.id}>li", count: 2)
+    expect(page).to have_selector("ul#comment_#{first_child.id}>li", count: 1)
+    expect(page).to have_selector("ul#comment_#{second_child.id}>li", count: 1)
   end
 
   scenario 'Collapsable comments', :js do