Revision history for Perl extension Benchmarks

0.03    Sat May  3 17:57:10 JST 2014
        - added new feature: to get a pure benchmark(NOT to compare)
        - refactor

0.02    Tue Apr 29 16:42:05 JST 2014
        - misc fixes

0.01    Tue Apr 29 14:42:49 JST 2014
        - original version