Correct "sentinel" spelling.
Merge pull request #5707 from dsm054/fix_sentinel_spelling

Correct "sentinel" spelling.
BUG: Bug in fillna with Series and a passed series/dict (GH5703)
CLN: clean up block validation for empty blocks
Merge pull request #5705 from jreback/series_fillna

BUG: Bug in fillna with Series and a passed series/dict (GH5703)
BUG: Bug in groupby transform with a datetime-like grouper (GH5712)
Add test for DataFrame.corrwith and np.corrcoef compatibility;
apparently failed once in 0.10.0.
BUG: correctly handle py2.6 datetime64 in groupers
Merge pull request #5713 from jreback/transform_bug

BUG: Bug in groupby transform with a datetime-like grouper (GH5712)
Merge pull request #5714 from dsm054/more_corrwith_tests

Add test for DataFrame.corrwith and np.corrcoef compatibility
DOC: fillna doc-string updated
TST: win32 test fixes (GH5711)
Merge pull request #5716 from pydata/winfix4

TST/DOC: close win32 tests issues (GH5711)
BUG: In a HDFStore, correctly handle data_columns with a Panel (GH5717)
Merge pull request #5718 from jreback/panel_hdf

BUG: In a HDFStore, correctly handle data_columns with a Panel (GH5717)
CLN: add diff to series/dataframe groupby dispatch whitelist
Merge pull request #5719 from gdraps/groupby-dispatch-2

CLN: add diff to series/dataframe groupby dispatch whitelist
DOC: trim CONTRIBUTING.MD
Merge pull request #5721 from y-p/PR_contributing

DOC: trim CONTRIBUTING.MD
DOC: DatetimeIndex accepts name param