Fixes#423.
* DETAILS: Document new status codes.
* cardglue.c (agent_scd_pkdecrypt, agent_scd_pksign)
(agent_scd_genkey, agent_scd_setattr, agent_scd_change_pin)
(agent_scd_checkpin, agent_openpgp_storekey): Make sure to send a
SC_OP_FAILURE after card operations which might change data.
* card-util.c (change_pin): Send a SC_OP_SUCCESS after a PIN has
been changed.
(change_name): Removed a debug output.
* status.h, status.c: New codes BAD_PASSPHRASE_PIN, SC_OP_FAILURE
and SC_OP_SUCCESS.
* de.po: Updated. Translation is still in the works, though.
c91e30fda4