Started on attachment import

* created Attachment
* created Dump#attachments
* specs
* replaced require with autoload

lib/wordpress/attachment.rb

@@ -0,0 +1,27 @@
+module Refinery
+  module WordPress
+    class Attachment
+      attr_reader :node
+
+      def initialize(node)
+        @node = node
+      end
+
+      def title
+        node.xpath("title").text
+      end
+
+      def description
+        node.xpath("description").text
+      end
+
+      def post_date
+        DateTime.parse node.xpath("wp:post_date").text
+      end
+
+      def url
+        node.xpath("wp:attachment_url").text
+      end
+    end
+  end
+end

lib/wordpress/dump.rb

@@ -47,6 +47,12 @@ module Refinery
           Category.new(category.text)
         end
       end
+
+      def attachments
+        doc.xpath("//item[wp:post_type = 'attachment']").collect do |attachment|
+          Attachment.new(attachment)
+        end
+      end
     end
   end
 end