Merge branch 'jx/remote-archive-over-smart-http'

"git archive --remote=<remote>" learned to talk over the smart http (aka stateless) transport. * jx/remote-archive-over-smart-http: transport-helper: call do_take_over() in process_connect transport-helper: call do_take_over() in connect_helper http-backend: new rpc-service for git-upload-archive transport-helper: protocol v2 supports upload-archive remote-curl: supports git-upload-archive service transport-helper: no connection restriction in connect_helper