API: integer values and non-nano dtype
I'm open to suggestions for a better wording on the whatsnew.

Note this handles all-int cases but not mixed-int.

timedelta64 analogue coming up.
test failures on circleci look related? > test failures on circleci look related?

yep, and there was even a helpful comment that telling me not to do what i did.  hopefully fixed now Thanks @jbrockmendel 