Best way to serialize and load

[microprediction]

I have a basic question about serialization and deserialization. How do you suggest that this is done? I ask because my instinct was json.dumps(t.to_dict()) but on the reverse trip, the current implementation of update_from_dict seems to be recalibrating from scratch unless I misunderstand. It is very slow. How should one quickly save and load many tdigests?

[microprediction]

See PR 62