Remove the special case for empty dataframes in to_html.

Fixes issue #6062.
BUG: iloc back to values for assignment. Closes #6602.
ENH: Make sure to return int for indices
BUG: Bug in popping from a Series (GH6600)
Merge pull request #6603 from jseabold/fix-testing

ENH: Make sure makeMissing* works as expected.
Merge pull request #6601 from jreback/pop

BUG: Bug in popping from a Series (GH6600)
API: default value for read_excel sheet (GH6573)
FIX str.match uses na flag
TST: enable MySQL tests
ENH/TST: Support for non-ascii encodings in DataFrame.to_excel (GH3710)
Merge branch 'excel_default' of https://github.com/clarkfitzg/pandas into clarkfitzg-excel_default
Merge pull request #6613 from jorisvandenbossche/sql-mysql2

TST: enable MySQL tests
CLN #6589 remove print statements when sep=None is passed to read_csv

Simply removed unneceesary print.
Merge pull request #6615 from mangecoeur/CLN-6589

CLN #6589 remove print statements when sep=None is passed to read_csv
BUG/CLN: fix iloc when positional indexer matched Int64Index keys

Also, drop takeable parameter from reindex(...) function family.
BLD: add 3.4 build requirements and wheels
Merge pull request #6614 from immerrr/drop-reindex-takeable-param

BUG/CLN: fix iloc when positional indexer matched Int64Index key
ENH: Allow longtable in to_latex. Closes #6616.

DOC: Make note about booktabs package.

DOC: Add longtable to release notes.
BUG: Bug in fillna with limit and value specified
Merge pull request #6628 from jreback/fillna_limit

BUG: Bug in fillna with limit and value specified