ENH add date to DatetimeIndex
Merge pull request #3614 from hayd/add_date_to_datetimeindex

ENH add date to DatetimeIndex
Merge pull request #3632 from jreback/assign_df

BUG: (GH3626) issue with alignment of a DataFrame setitem with a piece of another DataFrame
ENH: add regex functionality to DataFrame.replace

add default of None to to_replace

add ability to pass regex as to_replace regex

Remove cruft

more tests and add ability to pass regex and value

Make exceptions more clear; push examples to missing_data.rst

remove interpolation call

make inplace work across axes in interpolate method

ability to use nested dicts for regexs and others

mostly doc updates

formatting

infer_types correction

rls notes
DOC: minor edits in missing_data.rst and io/stata edits
API: Raise on ``iloc`` indexing with a mask boolean that is not an ndarray (GH3631_)

     PTF