pgbouncer - pgbouncer: Standardise UNIX socket UID lookup to

Log Message:
-----------
Standardise UNIX socket UID lookup to getpeeruid()

Where it does not exists use SO_PEERCRED or getpeerucred().

Modified Files:
--------------
    pgbouncer:
        configure.ac (r1.9 -> r1.10)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/configure.ac.diff?r1=1.9&r2=1.10)
    pgbouncer/src:
        admin.c (r1.7 -> r1.8)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/admin.c.diff?r1=1.7&r2=1.8)
        pooler.c (r1.1.1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/pooler.c.diff?r1=1.1.1.1&r2=1.2)
        util.c (r1.6 -> r1.7)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/util.c.diff?r1=1.6&r2=1.7)
        util.h (r1.3 -> r1.4)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/util.h.diff?r1=1.3&r2=1.4)