* parallel.el (parallel-start): Fix which service is sent to the remote.
* parallel.el: Permit to set hostport so we don't have to setup the tunnel
in a separate process.
* parallel.el (parallel-config): Add support to global config.
* parallel-remote.el (parallel-remote--filter): Silent byte compiler about
unused variable.
* parallel-remote.el: Fix a typo.
* parallel.el (find-func): Require missing dep.
(parallel--set-option): Don't expand parallel-config at macro-expansion
time.