Needed to rename whonix_gateway/usr/bin/arm to whonix_gateway/usr/bin/armwrapper,
since no longer using /usr/local/bin/arm. Otherwise it would overwrite the real arm file.
whonix_shared/etc/sudoers.d/arm: added sudoers exception for armwrapper
whonix_gateway/usr/share/whonix/kde/share/applications/whonix-arm.desktop: switched to armwrapper
whonix_gateway/usr/bin/whonix: revised a bit