BUG: 10633 and 10800 fix

BUG: 10633 - some last errors removed

ENH: pickle support for Period pandas-dev#10439

update legacy_storage for pickles

update pickles/msgpack for 0.16.2

Added tests for ABC Types, Issue pandas-dev#10828

TST: pandas-dev#10822, skip tests on windows for odd error message in to_datetime with unicode

COMPAT:Allow multi-indexes to be written to excel.

(Even though they cannot be read back in.)

Closes pandas-dev#10564

DOC: typo

A few changes in docs

TST: Changes in test

ENH: pickle support for Period pandas-dev#10439

update legacy_storage for pickles

update pickles/msgpack for 0.16.2

Added tests for ABC Types, Issue pandas-dev#10828

TST: pandas-dev#10822, skip tests on windows for odd error message in to_datetime with unicode

COMPAT:Allow multi-indexes to be written to excel.

(Even though they cannot be read back in.)

Closes pandas-dev#10564

DOC: typo

ENH: pickle support for Period pandas-dev#10439

update legacy_storage for pickles

update pickles/msgpack for 0.16.2

Added tests for ABC Types, Issue pandas-dev#10828

TST: pandas-dev#10822, skip tests on windows for odd error message in to_datetime with unicode

COMPAT:Allow multi-indexes to be written to excel.

(Even though they cannot be read back in.)

Closes pandas-dev#10564

DOC: typo

A few changes in docs

ERR: 10720

BUG: 10633 and 10800 fix

merging

ENH: pickle support for Period pandas-dev#10439

update legacy_storage for pickles

update pickles/msgpack for 0.16.2

Added tests for ABC Types, Issue pandas-dev#10828

TST: pandas-dev#10822, skip tests on windows for odd error message in to_datetime with unicode

COMPAT:Allow multi-indexes to be written to excel.

(Even though they cannot be read back in.)

Closes pandas-dev#10564

DOC: typo

A few changes in docs

TST: Changes in test

Fixing a slight messup

DOC:Updating consistent imports in the merging.rst file pandas-dev#9886

DOC: GH9886 Part V

DOC: GH9886 Part V - some merging issues

Author: springcoil