pgbouncer - pgbouncer: Couple hotfixes.

Log Message:
-----------
Couple hotfixes.

* More debugging in console, new command SHOW SOCKETS.
* unsigned usec_t + cached vs. uncached time created spurious
query_timeout errors.
* Fair queueing by giving a released server immidiately to waiting server.
* slog_*() print also socket pointer to make tracking possible.
* Sync test.sh with released code.

Modified Files:
--------------
pgbouncer/doc:
todo.txt (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/doc/todo.txt.diff?r1=1.1.1.1&r2=1.2)
pgbouncer/src:
admin.c (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/admin.c.diff?r1=1.1.1.1&r2=1.2)
bouncer.h (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/bouncer.h.diff?r1=1.1.1.1&r2=1.2)
client.c (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/client.c.diff?r1=1.1.1.1&r2=1.2)
janitor.c (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/janitor.c.diff?r1=1.1.1.1&r2=1.2)
main.c (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/main.c.diff?r1=1.1.1.1&r2=1.2)
objects.c (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/objects.c.diff?r1=1.1.1.1&r2=1.2)
sbuf.h (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/sbuf.h.diff?r1=1.1.1.1&r2=1.2)
server.c (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/server.c.diff?r1=1.1.1.1&r2=1.2)
stats.c (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/stats.c.diff?r1=1.1.1.1&r2=1.2)
util.c (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/util.c.diff?r1=1.1.1.1&r2=1.2)
util.h (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/util.h.diff?r1=1.1.1.1&r2=1.2)
pgbouncer/test:
test.ini (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/test/test.ini.diff?r1=1.1.1.1&r2=1.2)
test.sh (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/test/test.sh.diff?r1=1.1.1.1&r2=1.2)