perl-*: Import from oldpackages, update to latest upstream, fix, add myself as maintainer

This is all oldpackages/perl-* packages, updated, fixed, cleaned up and tested.

The actual changes aren't that severe. I've fixed formatting, copyright notices, added licensing information, updated the CPAN download url and various less important stuff that makes them blend in better, but doesn't really do anything in terms of functionality. perl-www-curl needed some repair to make it link properly though.

Please note that these require perl-5.20.0-4. See #123.
There is also a version with all commits for each package split up separately at [1]. 85 commits with mostly the same stuff, so I figured it might be better to boil them down a bit.

Tested on mipsel, arm, x86 and x86_64.

[1] https://github.com/Naoir/packages/tree/perl-modules-long