Merge pull request #4841 from jreback/hdf_tz

BUG: store datetime.date objects in HDFStore as ordinals rather then timetuples to avoid timezone issues (GH2852)
ENH: Better Exception when trying to set on Series with tuple-index.
Merge pull request #4837 from jtratner/fix-tuple-index-series-exception

ENH: Better Exception when trying to set on Series with tuple-index.
CLN: replace rwproperty with regular property
Merge pull request #4843 from jtratner/remove-rwproperty

CLN: replace rwproperty with regular property
BUG/ER: Stricter testing of 'monotocity' when reindexing with ffill or bfill (GH4483).

Minor documentation change.
Merge pull-request #4642 from prossahl/AHLRAP-3063-01

BUG/ER: Stricter testing of 'monotocity' when reindexing with ffill (GH4483)
DOC: v0.13.0.txt cleanup
BUG: Fixed an issue with a duplicate index and duplicate selector with .loc (GH4825)