Perlbrew Release 0.54

perlbrew 0.54 is released on 2012-10-24T21:21:25+0200 with the following changes

• Now requires perl 5.8.8
• Fix an issue with list-module command listing extra modules See GH #245
• Tweak default Configure options for pre-5.6 versions
• Fix an issue with warning messagse in 'upgrade-perl' command.