ENH ohlc resample for DataFrame
CLN refactor with _apply_to_column_groupbys
CLN: Remove redundant call to get_splitter
CLN: Remove unused assignment
API: raise a TypeError when isin is passed a string
BUG: TimeSeries not properly deserializing for < 0.13 (deprecations); additional tests

ENH: add 32-bit 2.7 pickle from 0.12

BUG: fixed py3 load_reduce; weird encoding on nan
Merge pull request #4765 from cpcloud/series-isin-fix

API: raise a TypeError when isin is passed a string
Merge pull request #4753 from kjordahl/cleanup/redundant-splitter

CLN: Remove redundant call to get_splitter
Merge pull request #4755 from jreback/pickle_compat

BUG: TimeSeries compat from < 0.13
BUG: Bug with reindexing where a non-unique index will now raise ValueError (GH4746)
CLN: refactored out take from core/frame.py to use core/generic.py version
Merge pull request #4757 from jreback/reindex_er

BUG: Bug with reindexing on the index with a non-unique index will now raise a ValueError
BUG: Bug in setting with loc/ix a single indexer and a numpy array, related to (GH3777)
BUG: allow replacement with a single list

This requires adding the ``method`` keyword parameter back in.
Merge pull request #4748 from cpcloud/series-replace-with-list

BUG: series replace should allow a single list
BUG: reading from a store with duplicate columns across dtypes would raise (GH4767)
Merge pull request #4766 from jreback/ix_assign

BUG: Bug in setting with loc/ix a single indexer on a multi-index axis and a listlike (related to GH3777)
Merge pull request #4768 from jreback/hdf_dups

BUG: reading from a store with duplicate columns across dtypes would raise (GH4767)
BUG: ensure column ordering in HDFStore with dup columns and column where specified
TST: more robust testing for HDFStore dups