Release v0.4.1
changelog: * [feature] introduced Trakt inserter * [feature] unified transfer script * [refactor] use python dictionaries instead of own data structure * [refactor] rename movielense to movielens
changelog: * [feature] introduced Trakt inserter * [feature] unified transfer script * [refactor] use python dictionaries instead of own data structure * [refactor] rename movielense to movielens