Log Message:
-----------
new backend_data_directory (float) -> (string).
Modified Files:
--------------
pgpoolAdmin/templates:
pgconfig.tpl (r1.11 -> r1.12)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpoolAdmin/templates/pgconfig.tpl.diff?r1=1.11&r2=1.12)