fix redirect after post, set the redirect render url in PortletServlet after doing an action
fix redirect after post, set the redirect render url in PortletServlet after doing an action

git-svn-id: 616481d960d639df1c769687dde8737486ca2a9a@5710 9c99c85f-4d0c-0410-8460-a9a1c48a3a7f

brandt/GridSphere,brandt/GridSphere