Improve zetuptoolz' logging of what it is doing.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
Bump zetuptoolz version number.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
Split dependencies for Windows and non-Windows: work in progress.

Signed-off-by: Daira Hopwood <daira@jacaranda.org>