- usbwait.c (need_removal, wait_for_usb): if need_removal is set, wait
for the device to be removed before trying to find it
- usbwait.c (usage, main): new option -r to set need_removal
- usbwait/usbwait.c: update the USB device tree until the specified
device is detected
- usbwait/Makefile: build usbwait (host only)
- Makefile (DIRS, BEN_DIRS, upload): separated subdirectories with tools
that can run on the Ben from those that can't
- Makefile (DIRS): added usbwait/