commits: 52d48450f6291716a90f4f7e93e15847942e0da0

This data as json

sha	message	author_date	committer_date	raw_author	raw_committer	repo	author	committer
52d48450f6291716a90f4f7e93e15847942e0da0	Add DatasetGroupBy.quantile (#3527) * move the implementation of DataArrayGroupBy.quantile to GroupBy * add tests for DatasetGroupBy * update whats-new.rst * move the item in whats-new.rst into New Features * don't drop scalar quantile coords	2019-11-15T19:58:01Z	2019-11-15T19:58:01Z	458e78ccf9cedef997b218d835348005d70e25c2	0c7e9e762dbfd6554e60c953bf27493047d95109	13221727	14808389	2448579