2007-10-05 Marcus Brinkmann <marcus@g10code.de>

• client.h (class client_t): Two new member functions

create_checksums and verify_checksums.

• client.cc (client_t::create_checksums, client_t::verify_checksums): New functions.

(client_t::encrypt_sign, client_t::encrypt): Fix spelling.

• gpgex.cc (ID_CMD_CREATE_CHECKSUMS, ID_CMD_VERIFY_CHECKSUMS,

ID_CMD_STR_CREATE_CHECKSUMS, ID_CMD_STR_VERIFY_CHECKSUMS): New macros.
(gpgex_t::QueryContextMenu): Add create and verify checksums menu entries.
(gpgex_t::GetCommandString): Support these here as well. Translate all strings.