Release 0.7

Macattrick 0.7 is now able to display the changes of the skills of the players. In the player table, a small change column is displayed after each skill. At the bottom the user can select a date to which the changes of the players should be displayed. Furthermore, we added a new tab to the preferences which enables to remove former, unused, dates. Beside these major improvements some minor improvements and bugfixes have been added. Version 0.7 is available in English, Dutch, and German.