Explicity require IO::Socket::SSL.

It is important for SSL download, so best not to leave it to download
as part of the dependency tree.
Rebuild all modules is Perl gets built.

And make them require that specific version of Perl, because otherwise it may
not be found in the path. That is, each version of Perl has its own @INC path,
so we need to make sure we have modules for every version of Perl.