Remove from start/end dates if tz is not None (remove check of inferred_tz).
DOC: mention that stack/unstack implicitly sort
DOC: mention implicit sorting in docstrings
ENH: tz_localize(None) allows to reset tz
Merge pull request #7852 from sinhrks/reset_tz

ENH: tz_localize(None) allows to reset tz
Merge pull request #7937 from toobaz/stack_unstack_doc

DOC: mention that stack/unstack implicicly sort
Merge pull request #7909 from rockg/master

Remove from start/end dates if tz is not None (#7901, #7835)
Update deprecate_kwarg message
DOC: add intersphinx mapping to numpy

There are already some references in the API docs to numpy functions, but the links did not yet work up to now.
Merge pull request #7945 from jorisvandenbossche/depr_message

Update deprecate_kwarg message
Merge pull request #7946 from jorisvandenbossche/intersphinx_numpy

DOC: add intersphinx mapping to numpy
API/COMPAT: Index no longer an ndarray sub-class (GH5080)

CLN: add searchsorted to core/base (GH6712, GH7447, GH6469)

fixup tests in test_timeseries for reverse ndarray/datetimeindex comparisons

fix algos / multi-index repeat (essentially this is a bug-fix)

ENH: add NumericIndex and operators, related (GH7439)

DOC: indexing/v0.15.0 docs

TST: fixed up plotting issues

COMPAT/API: use __array_priority__ to facility proper comparisons of DatetimeIndex with ndarrays

fixup to do actual views in copy (except in reduce where its needed)

COMPAT: numpy compat with 1.6 for np.may_share_memory

FIX: access values attr in JSON code to support index that's not an ndarry subclass

COMPAT: numpy compat with array_priority fix

CLN: remove constructor pickle compat code as not necessary

COMPAT: fix pickle in sparse

CLN: clean up shallow_copy/simple_new

COMPAT: pickle compat

remove __array_prepare__

COMPAT: tests & compat for numeric operation support only on supported indexes

DOC: fixup for comments

COMPAT: allow older MultiIndex pickles again

CLN: combine properties from index/series for ndarray compat
Merge pull request #7891 from jreback/index

CLN/INT: remove Index as a sub-class of NDArray
DOC: release notes corrections

TST: argmin/max impl, tests, and doc-strings
API: raise on __nonzero__ for Index (GH7897)
Merge pull request #7951 from jreback/index_follow

DOC/TST: index followup
ENH: New `level` argument for DataFrame.tz_localize and DataFrame.tz_convert (GH7846)
Merge pull request #7915 from mtrbean/ENH-7846

ENH: New `level` argument for DataFrame.tz_localize and DataFrame.tz_convert (GH7846)
TST: windows fixes relatd to Index not-subclass-ndarray
Removed unpaired left-paren.  Rephrased references.