use system_raw in terminal, even on Windows...
use system_raw in terminal, even on Windows
`system_raw` uses `os.system` instead of `utils.process.system`, and makes
more sense in a Terminal session.
There was discussion that it should be otherwise on Windows, but I can't
find any actual evidence for why this would be the case, and there are very
clear disadvantages to not using `os.system` (see
#978 and
#181).
closes gh-978
