BUG: fix plotting of dup indexed objects
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