v0.7, 2014-04-22 -- new README / docs
v0.6, 2014-04-18 -- created installable package
v0.5, 2014-04-08 -- some refactoring and cleanups
v0.4, 2014-03-28 -- rewrote TK GUI
v0.3, 2014-03-28 -- save and load settings
v0.2, 2014-03-13 -- GUI, icon and desktop files
v0.1, 2014-03-12 -- initial version
