1.3pre
	* Switch to threaded output for better playback performance

1.2
	* Use dynamic loading to access FTDI chip
	* Enable ftd2xx support
	* More timing fixes
	* Add additional debug instrumentation
	* Account for negative drift in jitter calculation
	* Split headers, code cleanup, more suitable for public library
	* Switch to "exSID USB" description string
	* Support Windows (via MinGW)
	* Switch to 2Mpbs interface

1.1
	* Fix time drifting for 750kbps playback

1.0
	* Initial release with libftdi support
