Revision history for Audio-Analyzer-ToneDetect

0.04  2013-09-08 22:12:27 EDT
        - slight POD change to prevent correct an error

0.03  2013-08-16 18:38:55 EDT
        - Sort new list passed in to valid_tones() and tests for it
        - Add Travis-CI build status image to POD, lets see if it makes it
          through POD -> Markdown for GitHub

0.02  2013-07-21 01:29:27 EDT
        - Support for discarding or overriding the detected tone from the
          valid_error_cb callback.
        - Tests that valid_error_cb is actually called with correct args

0.01  2013-06-16 23:33:06 EDT
        - Initial release
