EZP-22550 Added breadcrumb to navigate in Demobundle

## Description

The goal here was to add a breadcrumb to be able to naviguate in the Demobundle. For that I implemented a new bundle from white october named BreadCrumbsBundle ( see link to whiteoctober bundle ).
To work this bundle need to be registred in ezPublishKernel.php and in composer.json ( see link to ezpublish-community pull request ).

## Links

Jira : https://jira.ez.no/browse/EZP-22550
Whiteoctober BreadCrumbsBundle : https://github.com/whiteoctober/BreadcrumbsBundle 
Ezpublish-community pull request link : https://github.com/ezsystems/ezpublish-community/pull/150

## Screenshot

![screenshot from 2014-05-14 13 53 59](https://cloud.githubusercontent.com/assets/5558766/2970644/812d9ea2-db5e-11e3-96a8-4bb0d48b91b9.png)