Release notes for 0.3.0

Release 0.3.0 is beta version.

It covers almost all functions of Jack API, version 0.109.2.
Currently unsupported functions and features are:
-- jack_set_error_function (as it might by called by any native thread)
-- port connect callback (due to bug in Jack 0.109.2)
-- jack_client_create_thread (may be added after the "new thread model"
   is finally implemented in future versions of jackd/jackdmp)
-- all functions and features deprecated in 0.109.2

List of planned additions/features: 
-- basic infrastructure for native "slaves" that would efficiently do
   the hard work for Java application (such as copying samples, resampling, 
   applying gain, FFT etc.)
-- JavaSound SPI classes