TST: fix test that repr returns str
BUG: less false positives with SettingWithCopy (GH6025)
Merge pull request #6040 from dsm054/fix-test-that-repr-returns-str

TST: fix test that repr returns str
BUG: Bug in setting using fancy indexing a single element with a non-scalar (e.g. a list),
    (GH6043)
Merge pull request #6044 from jreback/ix_list

BUG: Bug in setting using fancy indexing a single element with a non-scalar (e.g. a list) (GH6043)
Merge pull request #6042 from jreback/setting_with_copy

BUG: less false positives with SettingWithCopy (GH6025)
CLN: ipython expects None from _repr_html_ to signal no html repr GH5922
Merge pull request #6045 from y-p/PR_ipython_repr_html

CLN: ipython expects None from _repr_html_ to signal no html repr GH5922
DOC: minor doc edits
Add -NaN and -nan to default NA values
Merge pull request #6038 from Bklyn/master

Make -NaN and -nan default NA values
Merge branch 'master', remote-tracking branch 'upstream/master'