pgstatsinfo - pg_statsinfo: Simplify SQLs that joined pg_stat_xxx and

Log Message:
-----------
Simplify SQLs that joined pg_stat_xxx and pg_statio_xxx.
Add English documentation for warm-standby configuration.
Parse to the end of current log even if shutdown message is found.

Modified Files:
--------------
pg_statsinfo/bin:
collector_sql.h (r1.10 -> r1.11)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgstatsinfo/pg_statsinfo/bin/collector_sql.h?r1=1.10&r2=1.11)
logger.c (r1.19 -> r1.20)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgstatsinfo/pg_statsinfo/bin/logger.c?r1=1.19&r2=1.20)
pg_statsinfo/doc:
pg_statsinfo-internal-ja.html (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgstatsinfo/pg_statsinfo/doc/pg_statsinfo-internal-ja.html?r1=1.2&r2=1.3)
pg_statsinfo-internal.html (r1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgstatsinfo/pg_statsinfo/doc/pg_statsinfo-internal.html?r1=1.1&r2=1.2)
pg_statsinfo-warm-standby-ja.html (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgstatsinfo/pg_statsinfo/doc/pg_statsinfo-warm-standby-ja.html?r1=1.2&r2=1.3)
pg_statsinfo.html (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgstatsinfo/pg_statsinfo/doc/pg_statsinfo.html?r1=1.5&r2=1.6)

Added Files:
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pg_statsinfo/doc:
pg_statsinfo-warm-standby.html (r1.1)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgstatsinfo/pg_statsinfo/doc/pg_statsinfo-warm-standby.html?rev=1.1&content-type=text/x-cvsweb-markup)