<?php
//ezpublish/EzPublishKernel.php

...
use Heliopsis\eZFormsBundle\HeliopsiseZFormsBundle;
...

class EzPublishKernel extends Kernel
{
    public function registerBundles()
    {
        $bundles = array(
            ...
            new HeliopsiseZFormsBundle(),
        );

        ...
    }
}