Paraunit 0.12.1: a small fix

I had to release a fast fix for a problem introduced in the 0.12 release, due to the new behavior of the --text and --text-summary options. At first, it seemed that having an option with an optional argument was impossible, but I was able to do that anyway, and it spured a PR to the Symfony Docs too!

Paraunit 0.10.1: report deprecations

With this release, Paraunit replaces the suggestion of facile-it/paraunit-testcase with dama/doctrine-test-bundle; also there’s a new feature that will report any test failure due to deprecation warnings catched by the Symfony PHPUnit Bridge.