changed the term "Vern" to "Versions" to be clearer
Docs for error_bad_lines, and warn_bad_lines options to pd.read_*
DOC: add basic documentation to some of the GroupBy properties and methods
DOC: add GroupBy class to api.rst
DOC: add import for GroupBy object to api.rst
DOC: add GroupBy.aggregate and GroupBy.transform to api.rst
DOC: add meta comment to api.rst about when GroupBy objects are created
DOC: add links to api.rst
ENH: mutliple series for FRED
BUG: to_html doesn't slice index to max_rows before formatting
VB: add to_html vbench
Merge pull request #5589 from y-p/PR_fix_slow_truncated_large_repr_html_5588

BUG: to_html doesn't slice index to max_rows before formatting
PERF: perf enhancements in indexing/query/eval
Merge pull request #5590 from jreback/indexing_perf

PERF: perf enhancements in indexing/query/eval
BUG: Bug in groupby returning non-consistent types when user function returns a None, (GH5592)
Merge pull request #5593 from jreback/groupby_apply

BUG: Bug in groupby returning non-consistent types when user function returns a None, (GH5992)
Add image for whatsnew docs
TST: dtype issue in test_groupby.py on windows
Merge pull request #5598 from pydata/winfix3

TST: dtype issue in test_groupby.py on windows (GH5595)
DOC: limit code snippet output to max_rows=15
Merge pull request #5599 from y-p/PR_doc_set_max_rows

DOC: limit code snippet output to max_rows=15
BUG: reset setitem_copy on object enlargement
TST: eliminate SettingWithCopyWarnings in tests (catch them)

TST: tests for GH5597

BUG: don't set copy on equal indexes after an operation
TST: add testing base TestCase to provide global testing config
TST: changed refs to use testing/TestCase where setUpClass/tearDownClass are defined
TST: change from using unittest.TestCase directly to using pandas.util.testing.TestCase