ENH: ma.asarray() and ma.asanyarray() will pass through input of the correct type.

If x is of type MaskedArray for ma.asarray(x) or any subtype of
MaskedArray for ma.asanyarray(x), these functions will simply return x.
This makes them consistent with their numpy counterparts.

Closes gh-4043.
BUG: Fixed mask_rowcols().

Previous implementation relied on ma.asarray() to always create
a new object.

See gh-4043.
ENH: Make output of get_atlas_info conditional on system_info.verbosity
Need to INCREF dtype again since PyArray_NewFromDescr steals a reference
BUG: Fix commutativity of {dot,multiply,inner}(scalar, matrix_of_objs)

Fixes #2469 and #4482. Relaxes fail condition to allow subtype as documented.
Remove excessive spacing
Merge pull request #4483 from meltingwax/meltingwax/2469

BUG: Fix commutativity of {dot,multiply,inner}(scalar, matrix_of_objects)
BLD: Fix build on Windows
TST: Test for einsum/nditer fixed stride bug
BUG: Buffered stride was erroneously marked fixed (fixes #4485)
Merge pull request #4502 from mwiebe/einsumfix

Fix for obscure einsum bug (#4485)
Merge pull request #4494 from embray/astropy-1987

BUG: Adds missing Py_INCREF in array_boolean_subscript
TST: add some more tests

test for gh-4494
test median returns array scalars and works with object arrays
BUG: Fix linspace for use with physical quantities

The fix for issue 3504 led to errors when using linspace with the quantities package. Multiplying with 1 instead of adding 0 prevents issues when using physical quantities.
Merge pull request #4503 from rproepp/3504-quantities

Fix linspace for use with physical quantities
Merge pull request #4507 from juliantaylor/test-add

TST: add some more tests
ENH: optimize srcstride0 copy with O3

enables autovectorization with gcc and improves performance by about 25% for cached data.
Merge pull request #4387 from abergeron/get_info

ENH: Make output of get_atlas_info conditional on system_info.verbosity
DOC: Add the change to disutils in the release notes.
Merge pull request #4514 from abergeron/get_info

Add the change to disutils in the release notes.