Point release notes to doc/release/1.9.0-notes.rst
Set LOG_START to 'v1.8.1'
Set LOG_END to 'maintenance/1.9.x'
Set raise_warnings to "release" in NoseTester constructor.

This allows numpy 1.9 testing to be used with current scipy
without flooding the output with deprecation warnings.

The deprecation warnings are currently issued for both the
subtract and negative operators when used with booleans.

This results in errors whenever you run tests using KnownFailure
like so: ``python test_mymodule.py`` (where run_module_suite is
used in the file, like numpy and scipy do).

Cosmetic adjustments to previous commit (893fe99) following "charris"'s
comments.

Adding an 'argv' optional argument to the
"numpy.testing.run_module_suite" function lets the client pass arguments
to the nose testrunner.

For example, this lets the user add things like:

run_module_suite(sys.argv)

at the end of a test module, so that arguments specified on the command
line will get passed to the nose runner. The user could then run:

$ python test_module.py --nocapture

Run the 2to3 ws_comma fixer on *.py files. Some lines are now too long
and will need to be broken at some point. OTOH, some lines were already
too long and need to be broken at some point. Now seems as good a time
as any to do this with open PRs at a minimum.

Now is as good a time as any with open PR's at a low.

nanmax, nanmin
--------------
Add out and keepdims keywords.

nanargmin, nanargmax
--------------------
A NanWarning is raised if an all NaN slice detected. For all such
slices np.iingo(np.intp).min is returned as the index value.

nansum
------
The keywords dtype, out, and keepdims are added.

A FutureWarning is raised, as in the future the mean of an empty
slice after NaN replacement will be 0 instead of the current NaN.

nanmean, nanvar, nanstd
-----------------------
For all, if the input array is of inexact type then the dtype and out
parameters must be of inexact type if specified.  That insures that NaNs
can be returned when appropriate.

The nanmean function detects empty slices after NaN replacement and
raises a NanWarning. NaN is returned as the value for all such slices.

The nanmean and nanstd functions detect degrees of freedom <= 0 after
NaN replacement and raise a NanWarning. NaN is returned as the value for
all such slices.

Deprecate np.testing.importall - it's pointless and partially broken.