getDossierFromBureauAndName function now use "LANGUAGE_FTS_ALFRESCO" instead...

getDossierFromBureauAndName function now use "LANGUAGE_FTS_ALFRESCO" instead of base lucene for searching, as FTS does not need for node to be indexed to be found.
"dossierService.deleteDossier" is now only called from "handleDeleteDossier", to always use worker to handle deletion