ENH: Better Exception when trying to set on Series with tuple-index.
Merge pull request #4837 from jtratner/fix-tuple-index-series-exception

ENH: Better Exception when trying to set on Series with tuple-index.
CLN: replace rwproperty with regular property
Merge pull request #4843 from jtratner/remove-rwproperty

CLN: replace rwproperty with regular property
BUG/ER: Stricter testing of 'monotocity' when reindexing with ffill or bfill (GH4483).

Minor documentation change.
Merge pull-request #4642 from prossahl/AHLRAP-3063-01

BUG/ER: Stricter testing of 'monotocity' when reindexing with ffill (GH4483)
TST: Cleanup Excel tests to make it easier to add and test additional writers
DOC: v0.13.0.txt cleanup
Merge pull request #4844 from jtratner/cleanup-excel-tests

TST: Cleanup Excel tests to make it easier to add and test additional writers
BUG: Fixed an issue with a duplicate index and duplicate selector with .loc (GH4825)
Merge pull request #4833 from jreback/series_loc

BUG: Fixed an issue with a duplicate index and duplicate selector with loc (GH4825)
ENH: add new computation module and toplevel eval function
ENH: rewrite assignment operator as equal comparison for PyTables
ENH: add Expr based terms for pytables
ENH: add automatic query via frame.__getitem__
ENH: add boolean operators
ENH: add chained comparisons
ENH: add subscripting to eval expressions
ENH: added interpretation of 'in' in pytables Term syntax

which is syntactically equivalent of '='
ENH: add local scoping with @lcl_variable syntax