nginx bitbucket push issue 408

add to ngiunx server config client_body_buffer_size 128k; client_max_body_size 0; ignore_invalid_headers off; proxy_buffer_size 16k; proxy_buffers 32 16k; proxy_busy_buffers_size 64k; proxy_connect_timeout 60; proxy_intercept_errors on; proxy_next_upstream error timeout; proxy_redirect off; proxy_send_timeout 90;