Contributing
============

First of all, **thank you** for contributing, **you are awesome**!

Here are a few rules to follow in order to ease code reviews, and discussions before
maintainers accept and merge your work.

You MUST follow the code style as per `phpcs.xml.dist` file 
(it is a modified version of the [doctrine/coding-standard v5.0](https://github.com/doctrine/coding-standard) rules). 
You can check the code violations by running `bin/phpcs` and you can fix most of the eventual issues 
automatically by running `bin/phpcbf`.  

You MUST run the test suite.

You MUST write (or update) unit tests.

You SHOULD write documentation.

Please, write [commit messages that make
sense](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html),
and [rebase your branch](http://git-scm.com/book/en/Git-Branching-Rebasing)
before submitting your Pull Request.

One may ask you to [squash your
commits](http://gitready.com/advanced/2009/02/10/squashing-commits-with-rebase.html)
too. This is used to "clean" your Pull Request before merging it (we don't want
commits such as `fix tests`, `fix 2`, `fix 3`, etc.).

Thank you!