Revision history for Perl extension Plack::Middleware::ETag

0.03    Thu Apr 14 17:25:26 2011
        - add check_last_modified_header (patch by Ranguard)
        http://code.google.com/speed/page-speed/docs/caching.html#LeverageBrowserCaching
        recommends not having both Last-Modified and ETag

0.02    Sat Jan 22 10:22:50 2011
        - add cache-control as suggested by ingy and miyagawa

0.01    Sun Feb 28 10:25:01 2010
        - original version
