decompressor doesn't know when it's done

[abellgithub]

The stream API doesn't allow the decompressor know when it has consumed a stream. It depends on the user knowing how many points are being decompressed.

[abellgithub]

IMO this should still be fixed.

[hobu]

I thought it was stale. reopening.

[abellgithub]

Obviously, it's not imperative. Would just be nice.