LP1817932 Improvements window Linux-base Windows building
Update build docs to assume Widnows builds are created on Linux. The
Windows instructions could be recovered, but not until there is a way to
fetch dependenies or the process is fully documented. For now, it's
Linux only.
Separte the extracted Windows and Linux Java dependencies so they can
live alongside each other.
Signed-off-by: Bill Erickson <berickxx@gmail.com> Signed-off-by: Jason Boyer <JBoyer@equinoxinitiative.org>