PERF: add np.max and np.min to _cython_table (GH5927)
BUG: Fixed ``to_datetime`` for array with both Tz-aware datetimes and
``NaT``s  (GH5961)
Merge pull request #5966 from y-p/PR_travis_cython_check

Pr travis cython check
Merge pull request #5962 from cancan101/fix_nat_tz

BUG: Fixed to_datetime for array with both Tz-aware datetimes and NaTs
Update rolling skew & kurtosis to handle cases where they aren't defined

The rolling skewness and kurtosis in algos.pyx were modified to match
the testing logic in pandas/core/nanops.py. They now both return NaN
where they are not defined, which occurs where there are either too
few observations or where the variance is zero.

A set of tests was added to verify that Nan is returned in these cases
and that the computations continue to work correctly when the values
are defined.
Merge pull request #5760 from yieldsfalsehood/master

Update rolling skew & kurtosis to handle cases where they aren't defined
Merge pull request #5960 from dsm054/more_resample_fast_paths

PERF: add np.max and np.min to _cython_table (GH5927)
PERF: perf improvments in dtypes/ftypes methods (GH5968)
Merge pull request #5970 from jreback/dtypes_perf

PERF: perf improvments in dtypes/ftypes methods (GH5968)
ENH: revamp null count supression for large frames in df.info()
Merge pull request #5974 from y-p/PR_info_max_info_rows

ENH: revamp null count supression for large frames in df.info()
ENH: make show_versions available in the top_level api
Merge pull request #5976 from y-p/PR_show_versions_to_the_top

ENH: make show_versions available in the top_level api
TST: fix broken test test_info_wide
BUG: Allow DatetimeIndex for scipy interpoalte
VBENCH: rename parser.py to parser_vb.py
BUG: fix broken df.info() test_info_duplicate_columns
BUG: fix broken df.info() test_info_duplicate_columns
Merge pull request #5977 from TomAugspurger/interpolate-datetime

BUG: Allow DatetimeIndex for scipy interpolate
PERF: perf improvments in indexing with object dtypes (GH5968)