Add download.sh file
s/Dowloading/Downloading/
Abort if errors are encountered
Small doc correction for USERPROFILE on Windows systems
Merge pull request #210 from zarko-tg/userprofile_fix_in_readme

Small doc correction for USERPROFILE on Windows systems
Merge pull request #175 from michaelsauter/feature/add-download-script

Add download.sh file
Need to allow the pflags and config to set both VBM and Verbose - this is the minimal change to make windows work
Extract VirtualBox specific cfg parameters to the driver
yeah, don't need that line
address gmlewis's comments