0.2.1

Added

• JSONNumber, Position, AtLeast (so LineString), LinearRing, Polygon, Geometry, JSONValue, Feature.Identifier, Feature, FeatureCollection and GeoJSON conform to CustomStringConvertible, so they print as the GeoJSON they stand for (2.65, [12.4964, 41.9028]) instead of their internal structure. Logs or snapshot tests that captured the previous printout will see the new text.