Add better support for "make import batch from file" pattern

tailbone/templates/batch/view.mako

@@ -79,7 +79,7 @@
   ${self.context_menu_items()}
 </ul>
 
-% if status_breakdown is not Undefined:
+% if status_breakdown is not Undefined and status_breakdown is not None:
     <div class="object-helper">
       <h3>Row Status Breakdown</h3>
       <div class="object-helper-content">

tailbone/templates/master/import_file.mako

@@ -0,0 +1,6 @@
+## -*- coding: utf-8; -*-
+<%inherit file="/master/create.mako" />
+
+<%def name="title()">Import ${model_title_plural} from ${importer_host_title}</%def>
+
+${parent.body()}