The "clean project" dialog is now able to clean unused title block template.

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/branches/0.3@1478 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/qetproject.cpp

@@ -740,6 +740,13 @@ bool QETProject::usesTitleBlockTemplate(const TitleBlockTemplateLocation &locati
 	return(false);
 }
 
+/**
+	Delete all title block templates not used in the project
+*/
+void QETProject::cleanUnusedTitleBlocKTemplates() {
+	titleblocks_.deleteUnusedTitleBlocKTemplates();
+}
+
 /**
 	Supprime tous les elements inutilises dans le projet
 	@param handler Gestionnaire d'erreur