template_erp5_xhtml_style was used to have a customise breadcrumb. Now it's...

template_erp5_xhtml_style was used to have a customise breadcrumb. Now it's possible by overriding breadcrumb_render page template. So remove customised template_erp5_xhtml_style and add breadcrumb_render.
Hide logged_in_as bloc using css. Because this bloc is inclued in template_erp5_xhtml_style from erp5_xhtml_style bt and in TioLive we don't need it because login is displayed in top-bar.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@26426 20353a03-c40f-0410-a6d1-a30d3c3de9de