Amélioration recherche historique
On ignore le répertoire .idea
Merge branch 'features/FormRecherche' of https://github.com/LehaFrance/testcl into features/FormRecherche

Conflicts:
	src/Leha/CentralBundle/Repository/EchantillonRepository.php
	src/Leha/HistoriqueBundle/Controller/DefaultController.php
	src/Leha/HistoriqueBundle/Form/Type/HistorySearchType.php
	src/Leha/HistoriqueBundle/Form/Type/SearchAttributesType.php
	src/Leha/HistoriqueBundle/Resources/views/Default/search.html.twig