sha,message,author_date,committer_date,raw_author,raw_committer,repo,author,committer
bad8a7dea7e8b9196c2bab6d22161ed01935d3bd,"Document pandas' better groupby performance.

cf. #659.",2015-11-17T07:08:06Z,2015-11-17T07:08:06Z,6b634ef3edceb380191d92d18e50d3eb6e116cf9,6b634ef3edceb380191d92d18e50d3eb6e116cf9,13221727,1322974,1322974