Log Message:
Changes 1.0.8:

New Features:
* Synchronous Interrupt read support.
* Added new usb_get_descriptor_by_endpoint() function. Properly prototyped
  existing usb_get_descriptor() function.
* (Linux) Check for usbdevfs in /sys/bus/usb (2.6 kernel).
* (Linux) Added usb_get_driver_np() function to get driver bound to interface.
* (Linux) Added usb_detach_kernel_driver_np() function to detach kernel driver
  from interface.

Bug Fixes:
* Many return values are starting to become normalized (consistent across ports)
* Various bug fixes in Darwin port.
* Fix usb_string() to fetch language index correctly.
* More documentation updates and fixes.