* common/helpfile.c (gnupg_get_template): Add arg locale_override and
adjust all callers.
* tools/wks-receive.c (struct receive_ctx_s): Add field ct_language.
(get_language): New.
(new_part): Call it.
(wks_receive): Pass language to the result callback.
* tools/gpg-wks-client.c (short_locale): New.
(main): Get and store the current locale.
(command_create): Fix a glitch for the Posteo hack.  Insert the locale
into the confirmation request.
(send_confirmation_response): Ditto.
* tools/gpg-wks-server.c (struct server_ctx_s): Add field language.
(only_ascii): New.
(struct my_subst_vars_s, my_subst_vars_cb, my_subst_vars): New.
(send_confirmation_request): Use a template.
(send_congratulation_message): Ditto.
(check_and_publish): Pss ctx to send_congratulation_message.
(command_receive_cb): Add arg language.
* doc/wks-utils.txt, doc/wks-utils.de.txt: New.
* doc/Makefile.am (helpfiles): Add them.