ENH: switch Dataset and DataArray to use explicit indexes#2639

Merged

shoyer merged 4 commits intopydata:masterfrom shoyer:explicit-indexes

Jan 4, 2019

+86-50

Commits on Jan 1, 2019

Commits on Jan 3, 2019

Merge branch 'master' of github.com:pydata/xarray into explicit-indexes
shoyer
committed

Commits on Jan 4, 2019

Fixes per review
shoyer
committed