Show "buttons" when viewing an object, with forms2

also tweak logic when creating a batch..we'll see if it works..

tailbone/templates/forms2/form_readonly.mako

@@ -2,7 +2,7 @@
 
 <div class="form">
   ${form.render_deform(readonly=True)|n}
-##   % if buttons:
-##       ${buttons|n}
-##   % endif
+  % if buttons:
+      ${buttons|n}
+  % endif
 </div><!-- form -->

tailbone/views/batch/core3.py

@@ -120,9 +120,11 @@ class BatchMasterView3(MasterView3, BatchMasterView2):
             # current user is batch creator
             batch.created_by = self.request.user or self.late_login_user()
 
+            # TODO: is this still necessary with colander?
             # destroy initial batch and re-make using handler
             kwargs = self.get_batch_kwargs(batch)
-            self.Session.expunge(batch)
+            # if batch in self.Session:
+            #     self.Session.expunge(batch)
             batch = self.handler.make_batch(self.Session(), **kwargs)
 
         self.Session.flush()