Underscores in info field names are now changed to spaces when rendered.

Not an ideal solution since underscores now can't be used in field names,
but since it's PHP's POST handling getting in the way it'll have to do.

include/ProductPage.php

@@ -56,7 +56,8 @@ class ProductPage extends Page {
         }
         $info = '';
         foreach($this->product->get_info() as $key => $value) {
-            $info .= replace(array('name' => ucfirst($key),
+            $name = ucfirst(str_replace('_', ' ', $key));
+            $info .= replace(array('name' => $name,
                                    'key' => $key,
                                    'value' => $value),
                              $info_item_fragment);