lots of changes
Merge branch 'master-arnaud'

Conflicts:
	Controller/PlayerController.php
	Controller/StepController.php
	Entity/Path.php
	Entity/Step.php
	Resources/public/css/Player/main.css
	Resources/views/Player/components/squares-browser.html.twig
	Resources/views/Player/main.html.twig
debug
Merge branch 'master-axel'
hotfix : change path.resourceNode.id to path.id
Merge branch 'master' of github.com:InnovaLangues/PathBundle
fix breadcrumbs