New in 1.3 - 2016-04-xx
-----------------------
+* Added ftdi_usb_get_strings2() to prevent automatic device close (Fahrzin Hemmati)
* Added ftdi_transfer_data_cancel for cancelation of a submitted transfer,
avoided resubmittion of a cancelled transfer in the callbacks, replaced calls
to libusb_handle_events with libusb_handle_events_timeout_completed