Fixed a mistake in linalg.eig() documentation.
ENH: Added test cases to ensure the behavior of integer as it is.
There is a need to add test case which ensure and maintain the behaviour
of integer. As per pr #3567, which speed up integer scalar's operations
by avoiding the conversion of integer to NumPy Scalar.
ENH: improve numpy.all()/any()

Unroll the loop once and use pminub/pmaxub to save a slow pmovmskb
instruction. Improves performance by 50% on some AMD chips.
Also add a pure libc path using memcmp and memchr for non amd64 systems.
The libc path can be faster with a very modern cpu and libc version,
e.g. an i7 with glibc 2.17 is about 20% faster than our code but many
other tested platforms are much slower (2.12 xeon, core2duo) or same
speed (2.17 phenom).
The numpy code can be removed in future when faster libc versions and
cpus are more commonly available.
MAINT: move npy_is_aligned to common.h

also make it and some other alignment operators a bit faster by using
unsigned integers and bitwise and if possible.
Make use of npy_is_aligned in _IsAligned too.
ENH: add NPY_LIKELY and NPY_UNLIKELY macros for branching hints

Use it for npy_is_aligned expecting alignments of the power of two.
Cuts down the time spent in _IsAligned by the testsuite relative
to the rest of multiarray.so from 0.6% to 0.4%
Added test case for size of long based of os
Fix documentation description of loop spam in interactive interpreter
MAINT: remove unused and broken parts of numpy.testing

Deprecate np.testing.importall - it's pointless and partially broken.
Merge pull request #3597 from rgommers/testing-module-cleanup

MAINT: remove unused and broken parts of numpy.testing
Merge pull request #3596 from ecprice/a

Fix documentation description of loop spam in interactive interpreter
Merge pull request #3517 from juliantaylor/memchr-all-any

ENH: use memchr for unit stride all/any
BUG: Fix PyType_FastSubclass() check for numpy.int_

Signed-off-by: Yury V. Zaytsev <yury@shurup.com>
BUG: Document that numpy.int_ doesn't inherit from int on Py3k

Signed-off-by: Yury V. Zaytsev <yury@shurup.com>
TST: Add regression test to check numpy.int_ inheritance on Py2/Py3

Signed-off-by: Yury V. Zaytsev <yury@shurup.com>
BUG: Fix test_operand_flags test.

The test tests an inner loop in operand_flag_tests.c.src that expects
a long type, but it is tested using 'i8'. This fails when long is not
'i8'.

Closes #3363.
Merge pull request #3526 from zyv/fix_int_inheritance

BUG: Fix PyType_FastSubclass() check for numpy.int_ and Py3k inheritance
Merge pull request #3594 from juliantaylor/is_aligned_maint

MAINT: move npy_is_aligned to common.h
DOC: update example of histogram2d to doctest format.
DOC: fix some minor issues with histogram2d docstring formatting.
Merge branch 'pr/3591' into master.

See https://github.com/numpy/numpy/pull/3591