Updated 64-bit Windows installer for Octave 4.4.0

[John W. Eaton]

The 64-bit Windows binaries of Octave 4.4.0 released last week were 
mistakenly built without 64-bit indexing enabled.

An updated installer is now available by http or ftp from ftp.gnu.org. 
The new file has the version number 4.4.0-w64_1:

  http://ftp.gnu.org/gnu/octave/windows/octave-4.4.0-w64_1-installer.exe

Please use a mirror site if possible.  Info about the mirrors is here:

  https://www.gnu.org/prep/ftp.html

You may also use ftpmirror.gnu.org to select a mirror site automatically.

Updated 7z and zip files are also available.

NOTE that unless you need to create arrays with more than about 2 
billion elements, this update won't make a difference for you, so it's 
not essential for everyone to update.

jwe