Final grid refactor; we now have just 'grids' :)

this also removes some old UI stuff for the first attempt at continuum
versioning..among other cruft

tailbone/templates/batch/index.mako

@@ -1,12 +0,0 @@
-## -*- coding: utf-8 -*-
-<%inherit file="/grid.mako" />
-
-<%def name="title()">${batch_display_plural}</%def>
-
-<%def name="context_menu_items()">
-  % if request.has_perm('{0}.create'.format(permission_prefix)):
-      <li>${h.link_to("Create a new {0}".format(batch_display), url('{0}.create'.format(route_prefix)))}</li>
-  % endif
-</%def>
-
-${parent.body()}