Important: This library requires PHP 5.3 or higher.

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Added some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request

The existing tests in the test directory can be run using PHPUnit with the following command:

composer update --dev
cd test
../vendor/bin/phpunit
```

or if you already have PHPUnit installed globally.

```bash
cd test
phpunit
```