v0.1.0, 19-Feb-2017 -- Initial release
v0.1.1, 20-Feb-2017 -- Make it compatible with Linux
v0.1.2, 20-Feb-2017 -- Update doc
v0.1.3, 20-Feb-2017 -- Add wav and mp3 to package
v0.1.4, 20-Feb-2017 -- sounddev replaced by pygame
v0.1.5, 15-Mar-2017 -- OSX fix
v0.1.6, 19-Mar-2017 -- update documentation
v0.1.7, 12-Apr-2017 -- fix bug when reading in a second file
v0.1.8, 12-Apr-2017 -- convert float input files to integer
v0.2.0, 23-March-2018 -- Eliminate the dependency on easygui

