TST: test for breaking test in pytables on travis
CLN/BUG: Revert 2/3 compat changes to vb_suite
Merge pull request #4478 from jtratner/revert-vb-suite

BUG: revert 2/3 changes in vbsuite
Merge pull request #4489 from jreback/hdf_fix

TST: test for breaking test in pytables on travis
TST: reverse hdf_fix
Merge pull request #4490 from jreback/hdf_fix2

TST: reverse hdf_fix
BLD/TST: correct pytz version for tox
BUG: fix plotting of dup indexed objects
Merge pull request #4495 from Komnomnomnom/tox-pytz

BLD/TST: correct pytz version for tox
Merge pull request #4492 from cpcloud/plotting-length-fix

BUG: fix plotting of dup indexed objects
BUG: allow cummethods to work with bool dtypes
Merge pull request #4440 from cpcloud/fix-cumsum-bool

BUG: allow cumprod and cumsum to work with bool dtypes
BUG: (GH4016) fix panel slicing issue that was returning an object that should not
     have be a reduction in ndim
BUG: (GH3830), panel assignment using loc with a transpose frame did not work
ER: GH3777, raise a NotImplementedError for Panel -> Panel setting with alignment
Merge pull request #4507 from jreback/panel_index

BUG/ER: various panel indexing fixes
TST: tests for GH4502, consistency in ix assignments, but ok in master
Merge pull request #4509 from jreback/ix_consist

TST: tests for GH4502, consistency in ix assignments, but ok in master
CLN: do not allow frozenset
Merge pull request #4482 from cpcloud/set-construct

BUG: raise on frozenset construction by Series