TST: Skip failing boxplot tests on mpl 1.4+
Changed round_trip converter to Python converter instead of strtod
DOC: v0.15.0 et all updates
Merge pull request #8357 from amras1/new-float-conversion

Changed round_trip converter to Python converter instead of strtod
Merge pull request #8398 from TomAugspurger/mpl-dev-boxplot-skips

TST: Skip failing boxplot tests on mpl 1.4+
Better message in exception when conversion from period to timestamp fails
CLN: Remove core/array.py
Added a section to FAQ Docs about startup scripts for setting up pandas.
Merge pull request #8407 from cstoafer/docs

Added a section to FAQ Docs about startup scripts for setting up pandas based on issue #5748.
Allow importing pandas without setuptools
BENCH: programmatically create benchmarks for large ngroups (GH6787)
DOC: fixup categorical news
DOC: update cut/qcut docstrings

* add some clarification about the useage of bins/labels and that they
  end up as categories.
* Update the examples to produce the current output with the new
  categoricals.
FIX: add nbytes property in Categorical
Merge pull request #8406 from sh9189/bbopensrcday2

CLN: Remove core/array.py
Merge pull request #8409 from jacobschaer/issue-8107

Allow importing pandas without setuptools
Fixup 10min
Merge pull request #8414 from JanSchulz/nbytes_categories

FIX: add nbytes property in Categorical
BUG: Bug in interesection of non-monotonic non-unique indexes (GH8362)
API/BUG: a  timeseries/index localized to UTC when inserted into a Series/DataFrame will preserve the UTC timezone (rather than being a naive datetime64[ns]) as object dtype (GH8411)