pgbouncer - pgbouncer: update docs with current status

Log Message:
-----------
update docs with current status

Modified Files:
--------------
pgbouncer:
NEWS (r1.11 -> r1.12)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/NEWS.diff?r1=1.11&r2=1.12)
pgbouncer/doc:
todo.txt (r1.8 -> r1.9)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/doc/todo.txt.diff?r1=1.8&r2=1.9)