Uwsgi: merged r->http_version fixes from scgi module.
Uwsgi: merged r->http_version fixes from scgi module.

Fixed incorrect use of r->http_version (r4372).  Removed duplicate function
declaration (r4373).  Removed error if there is no Status header (r4374).

firebase/nginx,hy0kl/nginx,firebase/nginx,firebase/nginx,hy0kl/nginx,hy0kl/nginx,firebase/nginx