Adapt to style changes of Auth forms
Fix 3-compatibility
Add call to `logging.disable`; use `utf-8`
Factor GTW.RST.Signed_Token
Add `request.environ` to `send_error_email`
Add CSRF protection to auth forms

+ Restrict auth pages to secure connections (or TEST)
Add `-Cache` to command `run_server`
Change `load_info` to preserve `dbid`
Fix `_data` to check user *only* once after `_load ()`
Improve `csrf_check`
Force `_create_cache_p=True` for command setup_cache
Use `request.host`, not `.host_url`, for `Anti_CSRF`
Improve error message for `csrf_check`
Fix typo in `csrf_check`
Use `sane_referrer` in `Login.GET._render_context`

* To fix scheme of `next` URL if HTTP-referrer refers to a HTTPS resource.
Improve error message for `csrf_check`
Add `-script_path`, `chmod +x` to `fcgi_script`