Otherwise the build fails to detect libusb and doesn't build
the 'xpwn' and 'dfu-util' tools.
New tools run but I don't have any suitable devices to test :).
(I believe latest iGadgets need a newer version of xpwn anyway)
This really hase some nice utilities for coping with HFS+ and DMG
format. We're going to use it for extracting the xcode DMG, but it could
be used for more, even generating DMGs.
The reason I'm using the fork instead of the repository from
@planetbeing is thet the fork contains a few fixes, especially for
dealing with symlinks in HFS+ images.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>