Added new USB_Host_ClearPipeStall() convenience function to clear a stall condition on an attached device's endpoint.

Added new USB_Host_GetDeviceDescriptor() convenience function to retrieve the attached device's Device descriptor.

Make Pipe_ConfigurePipe() mask the given endpoint number against PIPE_EPNUM_MASK to ensure the endpoint IN direction bit is cleared to prevent endpoint type corruption.

Fix documentation mentioning Pipe_GetCurrentToken() function when real name is Pipe_GetPipeToken().

LUFA/Drivers/USB/HighLevel/USBTask.h

@@ -116,6 +116,8 @@
 			 *
 			 *  \note This global is only present if the user application can be a USB host.
 			 *
+			 *  \see \ref USB_Host_States_t for a list of possible host states
+			 *
 			 *  \ingroup Group_Host
 			 */
 			extern volatile uint8_t USB_HostState;