BUG: resample raises ValueError when NaT is included
BUG: DTI.intersection doesnt preserve tz
Merge pull request #7373 from sinhrks/resamplenat

BUG: resample raises ValueError when NaT is included
Merge pull request #7458 from sinhrks/intersection

BUG: DTI.intersection doesnt preserve tz
ENH/API: offsets now accepts datetime64
Merge pull request #7452 from sinhrks/offsets_dt64

ENH/API: offsets funcs now accepts datetime64