[REM] Removed LazyResponse from webclient, use request.render() instead
[FIX] /web/login renders with the wrong user id
[MERGE] upstream
[IMP] Improvement/changes to the http request/response API.

- Get rid of LazyResponses
- Made website.render() an alias to request.render() [just kept in case this is merged in saas-3 but should be removed completely in favor of request.render()]

Need server/trunk's rev#5102