Log Message:-----------Improve backend flowchart to show more detail.
Modified Files:-------------- pgsql/src/tools/backend: flow.fig (r1.15 -> r1.16) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/tools/backend/flow.fig?r1=1.15&r2=1.16) flow.gif (r1.4 -> r1.5) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/tools/backend/flow.gif?r1=1.4&r2=1.5) index.html (r1.35 -> r1.36) (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/tools/backend/index.html?r1=1.35&r2=1.36)
