fixup! fixup! py2/py3: Make Products code compatible with both python2 and python3.

product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_access_tab/ERP5Site_renderActionList.zpt

@@ -7,7 +7,7 @@
   <table metal:define-macro="table"
          tal:define="max_per_line python: 4;
          cell_number python: len(module_category_list);
-         row_number python: (cell_number/max_per_line+1)"
+         row_number python: (cell_number//max_per_line+1)"
          class="access_tab_table">
     <tr tal:repeat="row python: range(row_number)">
       <tal:block tal:repeat="module_category python: module_category_list[(row*max_per_line):((row+1)*max_per_line)]">