FIX value_counts should skip NaT #7423
ENH dropna for value counts, fix tests for NaT
DOC add value_counts dropna to release notes
nanops pep8 fixes
PERF: addtl transform vbenches
WPI: fast tranform on DataFrame
BUG: Some offsets.apply cannot handle tz properly
BUG: astype(float) in Index does the wrong thing
Merge pull request #7464 from cpcloud/float64index-bad-construction

BUG: astype(float) in Index does the wrong thing
CLN: Simplify boxplot and modify its test
DOC: Add missing column header in 'baseball.csv'.
Merge pull request #7467 from helger/master

DOC: Add missing column header in 'baseball.csv'.
ENH: Cast ndarray-like datetime64 arrays to Index properly

It turns out that the ndarray-like arrays of dtype datetime64 were
not being properly cast to an Index, because -- due to a bug with
np.datetime64 -- calling np.asarray(x, dtype=object) if x is an
ndarray of type datetime64 results in an *integer* array.

This PR adds tests and a work around to pd.Index.__new__.

Related #5460
Merge pull request #7468 from shoyer/ndarray-like-to-index

ENH: Cast ndarray-like datetime64 arrays to Index properly
Merge pull request #7450 from bashtage/stata-13-strings

FIX: Enable fixed width strings to be read from Stata 13 (117) files
Merge pull request #7463 from jreback/merge_transform

PERF: performance gains in DataFrame groupby.transform for ufuncs (GH7383)
BUG: Bug in Panel.apply with a multi-index as an axis (GH7469)
Merge pull request #7474 from jreback/mi_array

BUG: Bug in Panel.apply with a multi-index as an axis (GH7469)
DOC: v0.14.1.txt fixes
Fix cache key collision and add test for cache key distinctness.