BUG: DTI.intersection doesnt preserve tz
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
BUG: astype(float) in Index does the wrong thing
Merge pull request #7464 from cpcloud/float64index-bad-construction

BUG: astype(float) in Index does the wrong thing
DOC: Add missing column header in 'baseball.csv'.
Merge pull request #7467 from helger/master

DOC: Add missing column header in 'baseball.csv'.