v1.0    2012-10-03  Initial release
v1.0.1  2013-10-14  Conform versioning with PEP8, PEP396.
                    Make window size and game parameters stateful saved 
                    configurations.
v1.1    2014-02-06  Add icons to status bar.
                    Add hint count.
                    Workaround for Issue13498 saving configuration.
                    Remedial work on the appearance.