ENH: apply_along_axis accepts named arguments
Docstring fix for `savetxt`
BUG: cythonize sources for wheel build

Wheel build was not cythonizing sources, giving a compile error because
needed `numpy/random/mtrand/mtrand.c` was missing.
TST: add travis test for wheel build and install

Add travis build that builds and installs wheel, runs tests from
installed wheel.
BUG: fix crash when sending interrupt signal to fft functions

the SIGINT handling code must be in the GIL released section so the
longjmp does not skip the retaking.
This implies that the signal handlers must use thread local storage to
avoid a crash when sending interrupt to threaded fft functions.
Distribution of SIGINT to each threads must be handled by the
application as only the master thread receives it
Closes gh-4634
BUG: Properly parse ufunc methods with PyUFunc_CheckOverride.
BUG: Fix and add ufunc override capabilities to ufunc methods.
TST: Add tests for ufunc.method overrides.
BUG, TST: Fix tests of ma.count return type.

The masked array count method was fixed to use np.intp when doing sums.
The return type is always np.intp except for count(arr, axis=None) when
arr has no mask, in which case the return type is that of ndarray.size.

The test errors were noted in #4698.
Merge pull request #4662 from matthew-brett/cythonize-for-wheels

BUG: cythonize sources for wheel build
BUG: Fix invalid value raised as error when testing on Windows.

The invalid value RuntimeWarning is raised as an error in numpy
testing, and in this case the Window build was raising the warning
for comparisons of NaNs.

Fixes the first error in #4698.
Merge pull request #4700 from charris/ignore-invalid-value-in-test

BUG: Fix invalid value raised as error when testing on Windows.
Fix for unclear array.resize() error message
Merge pull request #4705 from barentsen/patch-1

Fix for unclear resize() error message
BUG: searchsorted fails if sorter is not of type np.intp fixes #4698

The array being passed to the search function was not the one converted
to NPY_INTP, so it only worked if it was of that type to begin with.
Merge pull request #4708 from jaimefrio/sorter-bug

BUG: searchsorted fails if sorter is not of type np.intp fixes #4698
Merge pull request #4699 from charris/fix-ma.count-return-type-check

BUG, TST: Fix tests of ma.count return type.
BUG: core: allow scalar type richcompare to call ndarray-subclass methods

This makes the scalar richcmp behave exactly as
"array(self) <op> other". The difference comes in when "other" is an ndarray
subclass, in which case this change allows the subclass to override the
comparison operations via usual Python binop dispatch rules.
BUG: Fix string to int64 conversion on 32-bit platforms

closes gh-4575
Merge pull request #4711 from pv/scalar-richcmp-fix

BUG: core: allow scalar type richcompare to call ndarray-subclass methods