2011-12-16 SATOH Hiroh * 0.05: impl prepend_rules method. 2010-10-19 SATOH Hiroh * 0.04: fix treating backslash. fix test problems. 2010-10-18 SATOH Hiroh * 0.03: fix test problem. 2009-12-07 SATOH Hiroh * 0.02: suppress warning mode by default. warn if DBI_REWRITE_DSN=verbose 2009-07-07 SATOH Hiroh * 0.01: original