added bivio_pyenv_deactivate to workaround problem that once pyenv has been explicitly activated or deactivated that it won't go back into auto-de/activate mode
added bivio_pyenv_deactivate to workaround problem that once pyenv has been explicitly activated or deactivated that it won't go back into auto-de/activate mode

biviosoftware/home-env,biviosoftware/home-env