pgbouncer - pgbouncer: make failure from event_del() non-fatal -

Log Message:
-----------
make failure from event_del() non-fatal

- pgsocket: keep open sbufs in justfree lists, retry close later
- pooler: keep track socket states, retry in per-loop main function

Modified Files:
--------------
pgbouncer/include:
objects.h (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/include/objects.h.diff?r1=1.3&r2=1.4)
pooler.h (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/include/pooler.h.diff?r1=1.2&r2=1.3)
sbuf.h (r1.6 -> r1.7)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/include/sbuf.h.diff?r1=1.6&r2=1.7)
pgbouncer/src:
janitor.c (r1.22 -> r1.23)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/janitor.c.diff?r1=1.22&r2=1.23)
main.c (r1.31 -> r1.32)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/main.c.diff?r1=1.31&r2=1.32)
objects.c (r1.36 -> r1.37)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/objects.c.diff?r1=1.36&r2=1.37)
pooler.c (r1.10 -> r1.11)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/pooler.c.diff?r1=1.10&r2=1.11)
sbuf.c (r1.24 -> r1.25)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/sbuf.c.diff?r1=1.24&r2=1.25)
takeover.c (r1.11 -> r1.12)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/takeover.c.diff?r1=1.11&r2=1.12)