pgbulkload - pgbulkload: Add warning messages when some rows were not

Log Message:
-----------
Add warning messages when some rows were not loaded due to errors,
and change the exit code to non-zero in the cases.

Report and suggestions by thomas wiegers.

Modified Files:
--------------
    pgbulkload/bin:
        pg_bulkload.c (r1.23 -> r1.24)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/pg_bulkload.c?r1=1.23&r2=1.24)
    pgbulkload/bin/expected:
        load_bin.out (r1.8 -> r1.9)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_bin.out?r1=1.8&r2=1.9)
        load_check.out (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_check.out?r1=1.2&r2=1.3)
        load_csv.out (r1.10 -> r1.11)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_csv.out?r1=1.10&r2=1.11)
        load_encoding.out (r1.2 -> r1.3)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_encoding.out?r1=1.2&r2=1.3)
        load_filter-8.3.out (r1.2 -> r1.3)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_filter-8.3.out?r1=1.2&r2=1.3)
        load_filter-8.4.out (r1.2 -> r1.3)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_filter-8.4.out?r1=1.2&r2=1.3)
        load_filter-9.0.out (r1.2 -> r1.3)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_filter-9.0.out?r1=1.2&r2=1.3)
        load_function-8.3.out (r1.2 -> r1.3)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_function-8.3.out?r1=1.2&r2=1.3)
        load_function-8.4.out (r1.2 -> r1.3)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_function-8.4.out?r1=1.2&r2=1.3)
        load_function-9.0.out (r1.2 -> r1.3)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_function-9.0.out?r1=1.2&r2=1.3)
        load_parallel.out (r1.10 -> r1.11)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_parallel.out?r1=1.10&r2=1.11)
        load_remote.out (r1.10 -> r1.11)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_remote.out?r1=1.10&r2=1.11)
    pgbulkload/doc:
        pg_bulkload-ja.html (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/doc/pg_bulkload-ja.html?r1=1.4&r2=1.5)
        pg_bulkload.html (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/doc/pg_bulkload.html?r1=1.1&r2=1.2)
    pgbulkload/lib:
        pg_bulkload.c (r1.21 -> r1.22)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/pg_bulkload.c?r1=1.21&r2=1.22)