reorg - pg_reorg: Modify LOCK to LOCK-NOWAIT-and-loop at swap tables to

Log Message:
-----------
Modify LOCK to LOCK-NOWAIT-and-loop at swap tables to avoid holding exclusive locks long time. Suggested by Kenny
Gorman.

Modified Files:
--------------
    pg_reorg/bin:
        pg_reorg.c (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/reorg/pg_reorg/bin/pg_reorg.c.diff?r1=1.4&r2=1.5)
    pg_reorg/doc:
        index-ja.html (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/reorg/pg_reorg/doc/index-ja.html.diff?r1=1.2&r2=1.3)
        index.html (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/reorg/pg_reorg/doc/index.html.diff?r1=1.2&r2=1.3)
        pg_reorg-ja.html (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/reorg/pg_reorg/doc/pg_reorg-ja.html.diff?r1=1.2&r2=1.3)
        pg_reorg.html (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/reorg/pg_reorg/doc/pg_reorg.html.diff?r1=1.2&r2=1.3)
    pg_reorg/lib:
        pg_reorg.sql.in (r1.3 -> r1.4)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/reorg/pg_reorg/lib/pg_reorg.sql.in.diff?r1=1.3&r2=1.4)