pgsql: Add pg_dump -X no-data-for-failed-tables option to suppress

Log Message:
-----------
Add pg_dump -X no-data-for-failed-tables option to suppress loading data
if table creation failed (the table already exists).

Martin Pitt

Modified Files:
--------------
    pgsql/doc/src/sgml/ref:
        pg_restore.sgml (r1.59 -> r1.60)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/pg_restore.sgml.diff?r1=1.59&r2=1.60)
    pgsql/src/bin/pg_dump:
        pg_backup.h (r1.41 -> r1.42)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_backup.h.diff?r1=1.41&r2=1.42)
        pg_backup_archiver.c (r1.134 -> r1.135)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_backup_archiver.c.diff?r1=1.134&r2=1.135)
        pg_restore.c (r1.79 -> r1.80)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/bin/pg_dump/pg_restore.c.diff?r1=1.79&r2=1.80)