The author declines to provide a changelog in the sng distribution.  For a summary
of recent changes, see the "Recent Changes" section at the project home page:

  http://sng.sourceforge.net

For a detailed version control changelog, go to:

  http://sourceforge.net/p/sng/code/ci/7e28487d2623305db5cc2c7ff2e5ddedf5f0fa16/log/
