Write styles based on style objects appropriate for geometry.
Write fill and outline in PolyStyle if false (i.e. non-default)
Handle MultiLineString, MultiPoint and MultiPolygon within heterogenous MultiGeometry when writing features
Add getGeometriesArrayRecursive method to ol/geom/GeometryCollection to allow for nested MultiGeometry
Enhanced write GeometryCollection geometries test
A more rigorous write GeometryCollection geometries test including nested collections (the output is simplified to a single MultiGeomtry)
Add writeFeatures to outline and fill tests, setting geometry for geometry specific tests
Add <fill>0</fill> and <outline>0</outline> to some existing tests