pgbulkload - pgbulkload: Re-enable PARALLEL loader.

Log Message:
-----------
Re-enable PARALLEL loader.
Add new performance measurements with PostgreSQL 9.0b2 and pg_bulkload 3.0b1.
Start to support PostgreSQL 9.1.

Modified Files:
--------------
    pgbulkload/bin:
        Makefile (r1.13 -> r1.14)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/Makefile?r1=1.13&r2=1.14)
    pgbulkload/doc:
        index.html (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/doc/index.html?r1=1.2&r2=1.3)
        index_ja.html (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/doc/index_ja.html?r1=1.2&r2=1.3)
        pg_bulkload-ja.html (r1.7 -> r1.8)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/doc/pg_bulkload-ja.html?r1=1.7&r2=1.8)
        pg_bulkload.html (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/doc/pg_bulkload.html?r1=1.4&r2=1.5)
    pgbulkload/lib:
        pg_btree.c (r1.18 -> r1.19)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/pg_btree.c?r1=1.18&r2=1.19)
        writer_parallel.c (r1.12 -> r1.13)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/writer_parallel.c?r1=1.12&r2=1.13)

Added Files:
-----------
    pgbulkload/bin/expected:
        load_filter-9.1.out (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_filter-9.1.out?rev=1.1&content-type=text/x-cvsweb-markup)
        load_function-9.1.out (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_function-9.1.out?rev=1.1&content-type=text/x-cvsweb-markup)
    pgbulkload/bin/sql:
        load_filter-9.1.sql (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/sql/load_filter-9.1.sql?rev=1.1&content-type=text/x-cvsweb-markup)
        load_function-9.1.sql (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/sql/load_function-9.1.sql?rev=1.1&content-type=text/x-cvsweb-markup)
    pgbulkload/lib/nbtree:
        nbtsort-9.1.c (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/nbtree/nbtsort-9.1.c?rev=1.1&content-type=text/x-cvsweb-markup)