erp5_web_renderjs_ui: Remove hashes from google/facebook when logout.

bt5/erp5_web_renderjs_ui/SkinTemplateItem/portal_skins/erp5_web_renderjs_ui/WebSite_logout.py

@@ -5,6 +5,8 @@ REQUEST = context.REQUEST
 if REQUEST.has_key('portal_skin'):
   context.portal_skins.clearSkinCookie()
 REQUEST.RESPONSE.expireCookie('__ac', path='/')
+REQUEST.RESPONSE.expireCookie('__ac_google_hash', path='/')
+REQUEST.RESPONSE.expireCookie('__ac_facebook_hash', path='/')
 REQUEST.RESPONSE.setHeader('Location', came_from or context.getPermanentURL(context))
 REQUEST.RESPONSE.setStatus(303)
 # REQUEST.RESPONSE.redirect(came_from or context.getPermanentURL(context));