SQL: add index_label keyword to to_sql
Merge pull request #6642 from jorisvandenbossche/sql-multiindex

SQL: add index_label keyword to to_sql
BUG: bug in BlockManager._get_numeric_data, with invalid combine
Merge pull request #6730 from jreback/numeric

BUG: bug in BlockManager._get_numeric_data, with invalid combine
BUG: Bug in resample when how=None resample freq is the same as the axis frequency (GH5955)
Merge pull request #6731 from jreback/resample

BUG: Bug in resample when how=None resample freq is the same as the axis freq (GH5955)
BUG: Bug in downcasting inference with empty arrays (GH6733)
Merge pull request #6737 from jreback/infer

BUG: Bug in downcasting inference with empty arrays (GH6733)
DOC: small doc fixes (build warning in sym_diff + formatting in release notes)
Merge pull request #6739 from jorisvandenbossche/doc-fixes

DOC: small doc fixes (build warning in sym_diff + formatting in release notes)
BUG: MPL Plot cannot make loglog option worked
DOC: minor documenation changes
Merge pull request #6722 from sinhrks/loglog

BUG: MPLPlot cannot make loglog keyword worked
API: all offset operations now return Timestamp types (rather than datetime), Business/Week frequencies were incorrect (GH4069)
Merge pull request #6743 from jreback/freq

API: all offset operations now return Timestamp types (rather than datetime) (GH4069)
DOC: fixes empty boxes + too wide:
- excel: code snippets too wide
- visualisation: for some reason now empty boxes when ipython code blocks with plt.figure were suppressed, but not when removing the semicolon
DOC: improve docstring of pd.melt
TST: windows dtype correction
PRF: .shift() speedup: Only pass in c_contiguous arrays to np.roll/take
PRF: Fixed shift speed tests and added consolidated DataFrame shift perf
test