* gpg-agent.c (handle_connections): Need to check for events if

select returns with -1.

* tools.texi (gpg-connect-agent): New.

* app-openpgp.c (get_one_do): Never try to get a non cacheable
object from the cache.
(get_one_do): Add new arg to return an error code.  Changed all
callers.
(do_getattr): Let it return a proper error code.

* app.c (select_application): Return an error code and the
application context in an new arg.
* command.c (open_card): Adjusted for that.  Don't use the
fallback if no card is present.  Return an error if the card has
been removed without a reset.
(do_reset, cmd_serialno): Clear that error flag.
(TEST_CARD_REMOVAL): New. Use it with all command handlers.

* scdaemon.c (ticker_thread): Termintate if a shutdown is pending.

* apdu.c: Added some PCSC error codes.
(pcsc_error_to_sw): New.
(reset_pcsc_reader, pcsc_get_status, pcsc_send_apdu)
(open_pcsc_reader): Do proper error code mapping.

* gpg-connect-agent.c: New.
* Makefile.am: Add it.

common/xreadline.c

@@ -39,7 +39,7 @@
    memory was enable and ERRNO is set accordingly.
 
    If a line has been truncated, the file pointer is moved forward to
-   the end of the line so that the next read start with tghe next
+   the end of the line so that the next read start with the next
    line.  Note that MAX_LENGTH must be re-initialzied in this case..
 
    Note: The returned buffer is allocated with enough extra space to