[Snek] [keith-packard/snek] 2e6a35: Use rsync to upload files instead of scp

[Keith Packard]

  Branch: refs/heads/master
  Home:   https://github.com/keith-packard/snek
  Commit: 2e6a3599c5521bc82bdeebb761aa0b018f357334
      https://github.com/keith-packard/snek/commit/2e6a3599c5521bc82bdeebb761aa0b018f357334
  Author: Keith Packard <keithp at keithp.com>
  Date:   2019-03-08 (Fri, 08 Mar 2019)

  Changed paths:
    M doc/Makefile
    M linux/Makefile
    M windows/Makefile

  Log Message:
  -----------
  Use rsync to upload files instead of scp

This goes a lot faster over a slow network...

Signed-off-by: Keith Packard <keithp at keithp.com>