You can clone with
HTTPS or Subversion.
No check was done as part of npm install -g venus to see if I had phantomjs installed.
This should be done at install time, plus a check should be done when running with the --phantom option.
Currently Venus will just hang if run with --phantom and phantomjs is not installed. We should show a friendly error message in this case.
PhantomJS now is automatically installed as part of venus