updateHostsWindows.bat :: refactoring, fixed
updateHostsWindows.bat :: refactoring, fixed

- based on https://stackoverflow.com/a/10052222
- additional flags --auto --minimise (purged useless comments in final file = smaller size)  used
- tested on Windows 10 x64 - works well

gfyoung/hosts,borisschapira/hosts,StevenBlack/hosts,gfyoung/hosts,StevenBlack/hosts