* src/gpgme-tool.c (hlp_engine, hlp_sub_protocol, hlp_armor, hlp_textmode,
hlp_include_certs, hlp_keylist_mode, hlp_input, hlp_output, hlp_message,
hlp_recipient, hlp_signer, hlp_signers_clear, hlp_decrypt, hlp_decrypt_verify,
hlp_encrypt, hlp_sign_encrypt, hlp_sign, hlp_verify, hlp_import): New strings.
(hlp_protocol): Fix typo.
(register_commands): Add documentation strings.
(doc): Mention Assuan.