Improve compatibility from symfony 2.3.6 to ~2.5.0

Improving compatibility through symfony versions (from 2.3 to 2.5)

This is a bit hacky at the moment, especially [here](https://github.com/hoaproject/Contributions-Symfony-BenchBundle/pull/4/files#diff-1) but for now I just duplicated hacks from `Symfony\Component\Console\Helper\TableHelper`.

This is a first step. To get things clean, I have to:

* [ ] see how we can draw tables with `hoa/Console` (ping @Hywan)
* [ ] port the feature to the `hoathis/symfony-console-bridge` library
* [ ] wire the `hoathis/bench-bundle` and the `hoathis/symfony-console-bridge` together
* [ ] draw tables from there, getting rid of Symfony closed implementation