should not test unsupported Perl versions by default

[garfieldnate]

My distribution has a minimum Perl version of 5.10, but this plugin still adds all of the Perl versions starting from 5.8. A 5.8 failure is an allowed fail, so the build is still green, but if I had a minimum Perl version of 5.14 then I would have to manually put in the version numbers. Yes, I'm that lazy. After adding the MinimumPerl plugin, I just don't want to worry about it.

The declared minimum Perl version can be retrieved via the prereqs method, which will have a perl entry if a minimum version is known. The stickier problem would probably be comparing version numbers... Perhaps the version module?

[ugexe]

I'm not sure that [MinimumPerl] works on author deps. So even though [MinimumPerl] might return 5.8.9, one of the dist zilla plugins might require 5.10 which you won't know until you fail during its install.

[djzort]

in [Prereqs] you set perl = 5.x.0, so perhaps this should be the basis for the lowest version added in travis.yml ?