Fixed doc template to allow separate building of the documentation of each section. Usage: rake doc SECTION=lang.

Rakefile

@@ -85,7 +85,7 @@ end
 namespace :doc do
   desc "Builds the documentation."
   task :build => [:require] do
-    PrototypeHelper.build_doc_for('prototype.js')
+    PrototypeHelper.build_doc_for(ENV['SECTION'] ? "#{ENV['SECTION']}.js" : 'prototype.js')
   end  
   
   task :require do

templates/html/namespace.erb

@@ -93,7 +93,7 @@
       <% end %>
     </ul>
     
-    <% unless @doc_instance.mixins.empty? %>
+    <% unless @doc_instance.mixins.compact.empty? %>
       <% d.mixins.each do |mixin| %>
       <h4 class="inherited">Inherited from <%= auto_link(mixin) %></h4>
       <ul class="method-list">