Create simple CPAN Testers badge

[preaction]

We should expose badges for distributions to show off their status in CPAN Testers. We should create a new controller, CPAN::Testers::Web::Controller::Badge with a method pass_badge that creates an SVG image showing the percentage of reports that are PASS compared with the total PASS and FAIL. If the PASS percentage is above 90, the badge should be green. If it's below 90 and above 50, it should be yellow. If it is below 50, it should be red.

The dist and version should be provided in the URL. If the version is not provided, we should use the latest version of the dist.

[haukex]

I recently released Badge::Simple (haukex/Badge-Simple), which generates SVG badges, maybe it can help?

[preaction]

@haukex: Yes, that looks perfect!

[haukex]

Cool! What could I do to help? Just for example, here's how I patched it into CPANTS: cpants/www-cpants@92e7a28. I'm not sure what the best approach for cpantesters.org would be...

[preaction]

The main description of the ticket presents a possible solution: A new controller which will serve badges by dist and version (defaulting to latest non-dev version). It would need automated tests.

Once we have that, we can start adding it to places (like a blurb on http://beta.cpantesters.org)