Since all old-style multipolygons are now removed (osmlab/fixing-polygons-in-osm#15), we can drop support for this. This also allows to simplify the code in some corners and it's easier to implement a few related features.
[x] Remove old-style multipolygon handling.
[x] Automatically include tags from relation and relation_member tables. No need for load_all anymore (Closes #129, #130).
[x] Require specific type values for relation and relation_members with new relation_types option.
Since all old-style multipolygons are now removed (osmlab/fixing-polygons-in-osm#15), we can drop support for this. This also allows to simplify the code in some corners and it's easier to implement a few related features.
relationandrelation_membertables. No need forload_allanymore (Closes #129, #130).typevalues forrelationandrelation_memberswith newrelation_typesoption.