added .breadcrumbs method to Page drop. It gives all the ancestors of the page and the page itself

lib/locomotive/liquid/drops/page.rb

@@ -16,6 +16,10 @@ module Locomotive
         def parent
           @parent ||= self._source.parent.to_liquid
         end
+        
+        def breadcrumbs
+          @breadcrumbs ||= liquify(*self._source.self_and_ancestors)
+        end
 
         def children
           @children ||= liquify(*self._source.children)

spec/lib/locomotive/liquid/drops/page_spec.rb

@@ -52,6 +52,17 @@ describe Locomotive::Liquid::Drops::Page do
     end
           
   end
+  
+  context '#breadcrumbs' do
+    before(:each) do
+      @sub_page = Factory.build(:sub_page, :meta_keywords => 'Sub Libidinous, Angsty', :meta_description => "Sub Quite the combination.")
+    end
+    
+    it 'renders breadcrumbs of current page' do
+      content = render_template '{% for crumb in sub_page.breadcrumbs %}{{ crumb.title}},{% endfor %}', {'sub_page' => @sub_page}
+      content.should == 'Home page,Subpage,'
+    end
+  end
 
   context '#rendering page title' do